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Arithmetic and Geometry Math Foundations

Insights into Mathematics via YouTube

Overview

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Explore fundamental mathematical concepts through a comprehensive video lecture series that challenges conventional approaches to arithmetic, geometry, and algebra. Begin with basic number theory, examining what numbers truly are and progressing through arithmetic operations, the Hindu-Arabic number system, fractions, integers, and rational numbers. Investigate geometric foundations by studying Euclid's Elements, developing frameworks for geometry using rational numbers, and exploring concepts like circles, vectors, areas, and transformations while questioning traditional angle-based approaches. Delve into algebraic thinking through polynomial arithmetic, the binomial theorem, factoring, and calculus concepts applied to polynumbers. Examine critical issues with real numbers, infinite decimals, limits, and Cauchy sequences, while exploring alternative mathematical frameworks that avoid problematic infinite constructions. Learn about rational geometry through the Triple Quad Formula, Heron's formula, Brahmagupta's formula, and projective geometry concepts. Study data structures in mathematics including sets, multisets, lists, and arrays, leading to innovative "maxel theory" for matrix operations. Investigate big number arithmetic, hyperoperations, complexity theory, and the successor-limit hierarchy. Conclude with abstract algebra topics covering linear spaces, bases, dimension theory, and lattice relations, all presented through a critical lens that questions fundamental assumptions in modern mathematics while proposing constructive alternatives based on finite, computational approaches.

Syllabus

What is a number? | Arithmetic and Geometry Math Foundations 1 | N J Wildberger
Arithmetic with numbers | Arithmetic and Geometry Math Foundations 2 | N J Wildberger
Laws of Arithmetic | Arithmetic and Geometry Math Foundations 3 | N J Wildberger
Subtraction and Division | Arithmetic and Geometry Math Foundations 4 | N J Wildberger
Arithmetic and maths education | Arithmetic and Geometry Math Foundations 5 | N J Wildberger
The Hindu-Arabic number system | Arithmetic and Geometry Math Foundations 6 | N J Wildberger
Arithmetic with Hindu-Arabic numbers | Arithmetic and Geometry Math Foundations 7 | N J Wildberger
Division | Arithmetic and Geometry Math Foundations 8 | N J Wildberger
Fractions | Arithmetic and Geometry Math Foundations 9 | N J Wildberger
Arithmetic with fractions | Arithmetic and Geometry Math Foundations 10 | N J Wildberger
Laws of arithmetic for fractions | Arithmetic and Geometry Math Foundations 11 | N J Wildberger
Introducing the integers | Arithmetic and Geometry Math Foundations 12 | N J Wildberger
Rational numbers | Arithmetic and Geometry Math Foundations 13 | N J Wildberger
Rational numbers and Ford Circles | Arithmetic and Geometry Math Foundations 14 | N J Wildberger
Why infinite sets don't exist | Arithmetic and Geometry Math Foundations 16 | N J Wildberger
Extremely big numbers | Arithmetic and Geometry Math Foundations 17 | N J Wildberger
Primary school maths education | Arithmetic and Geometry Math Foundations 15 | N J Wildberger
Geometry | Arithmetic and Geometry Math Foundations 18 | N J Wildberger
Euclid's Elements | Arithmetic and Geometry Math Foundations 19 | N J Wildberger
Euclid's Books VI--XIII | Arithmetic and Geometry Math Foundations 21 | N J Wildberger
Euclid and proportions | Arithmetic and Geometry Math Foundations 20 | N J Wildberger
Difficulties with Euclid | Arithmetic and Geometry Math Foundations 22 | N J Wildberger
The basic framework for geometry (I) | Arithmetic and Geometry Math Foundations 23 | N J Wildberger
The basic framework for geometry (II) | Arithmetic and Geometry Math Foundations 24 | N J Wildberger
The basic framework for geometry (III) | Arithmetic + Geometry Math Foundations 25 | N J Wildberger
The basic framework for geometry (IV) | Arithmetic and Geometry Math Foundations 26 | N J Wildberger
Trigonometry with rational numbers | Arithmetic and Geometry Math Foundations 27 | N J Wildberger
What exactly is a circle? | Arithmetic and Geometry Math Foundations 28 | N J Wildberger
Parametrizing circles | Arithmetic and Geometry Math Foundations 29 | N J Wildberger
What exactly is a vector? | Arithmetic and Geometry Math Foundations 30 | N J Wildberger
Parallelograms and affine combinations | Arithmetic + Geometry Math Foundations 31 | N J Wildberger
Geometry in primary school | Arithmetic and Geometry Math Foundations 32 | N J Wildberger
What exactly is an area? | Arithmetic and Geometry Math Foundations 33 | N J Wildberger
Areas of polygons | Arithmetic and Geometry Math Foundations 34 | N J Wildberger
Translations, rotations and reflections (I) | Arithmetic and Geometry Math Foundations 35
Translations, rotations and reflections (II) | Arithmetic and Geometry Math Foundations 36
Translations, rotations and reflections (III) | Arithmetic and Geometry Math Foundations 37
Why angles don't really work (I) | Arithmetic and Geometry Math Foundations 38 | N J Wildberger
Why angles don't really work (II) | Arithmetic and Geometry Math Foundations 39 | N J Wildberger
Correctness in geometrical problem solving | Arithmetic and Geometry Math Foundations 40
Why angles don't really work (III) | Arithmetic and Geometry Math Foundations 41 | N J Wildberger
The problem with `functions' | Arithmetic and Geometry Math Foundations 42b | N J Wildberger
Reconsidering `functions' in modern mathematics | Arithmetic and Geometry Math Foundations 43
Definitions, specification and interpretation | Arithmetic and Geometry Math Foundations 44
Quadrilaterals, quadrangles and n-gons | Arithmetic + Geometry Math Foundations 45 | N J Wildberger
Introduction to Algebra | Arithmetic and Geometry Math Foundations 46 | N J Wildberger
Baby Algebra | Arithmetic and Geometry Math Foundations 47 | N J Wildberger
Solving a quadratic equation | Arithmetic and Geometry Math Foundations 48a | N J Wildberger
Solving a quadratic equation 48b | Arithmetic and Geometry Math Foundations | N J Wildberger
How to find a square root | Arithmetic and Geometry Math Foundations 49 | N J Wildberger
Algebra and number patterns | Arithmetic and Geometry Math Foundations 50 | N J Wildberger
More patterns with algebra | Arithmetic and Geometry Math Foundations 51 | N J Wildberger
Leonhard Euler and Pentagonal numbers | Arithmetic and Geometry Math Foundations 52 | N J Wildberger
Algebraic identities | Arithmetic and Geometry Math Foundations 53 | N J Wildberger
The Binomial theorem | Arithmetic and Geometry Math Foundations 54 | N J Wildberger
Binomial coefficients and related functions | Arithmetic and Geometry Math Foundations 55
The Trinomial theorem | Arithmetic and Geometry Math Foundations 56 | N J Wildberger
Polynomials and polynumbers | Arithmetic and Geometry Math Foundations 57 | N J Wildberger
Arithmetic with positive polynumbers | Arithmetic and Geometry Math Foundations 58 | N J Wildberger
More arithmetic with polynumbers | Arithmetic and Geometry Math Foundations 59 | N J Wildberger
What exactly is a polynomial? | Arithmetic and Geometry Math Foundations 60 | N J Wildberger
Factoring polynomials and polynumbers | Arithmetic and Geometry Math Foundations 61 | N J Wildberger
Arithmetic with integral polynumbers | Arithmetic and Geometry Math Foundations 62 | N J Wildberger
The Factor theorem and polynumber evaluation 63 | Arithmetic and Geometry Math Foundations
The Division algorithm for polynumbers | Arithmetic + Geometry Math Foundations 64 | N J Wildberger
Decimal numbers | Arithmetic and Geometry Math Foundations 66 | N J Wildberger
Row and column polynumbers | Arithmetic and Geometry Math Foundations 65 | N J Wildberger
Laurent polynumbers (the New Years Day lecture) | Arithmetic and Geometry Math Foundations 68
Visualizing decimal numbers and their arithmetic 67 | Arithmetic and Geometry Math Foundations
Translating polynumbers and the Derivative | Arithmetic and Geometry Math Foundations 69
Calculus with integral polynumbers | Arithmetic and Geometry Math Foundations 70 | N J Wildberger
Tangent lines and conics of polynumbers | Arithmetic + Geometry Math Foundations 71 | N J Wildberger
Graphing polynomials | Arithmetic and Geometry Math Foundations 72 | N J Wildberger
Lines and parabolas I | Arithmetic and Geometry Math Foundations 73 | N J Wildberger
Lines and parabolas II | Arithmetic and Geometry Math Foundations 74 | N J Wildberger
Cubics and the prettiest theorem in calculus | Arithmetic and Geometry Math Foundations 75
Object-oriented versus expression-oriented mathematics | Arithmetic and Geometry Math Foundations 77
An introduction to algebraic curves | Arithmetic and Geometry Math Foundations 76 | N J Wildberger
Inconvenient truths about sqrt(2) | Real numbers and limits Math Foundations 80 | N J Wildberger
Measurement, approximation and interval arithmetic (I) | Real numbers and limits Math Foundations 81
Measurement, approximation + interval arithmetic (II) | Real numbers and limits Math Foundations 82
Newton's method for finding zeroes | Real numbers and limits Math Foundations 83 | N J Wildberger
Newton's method for approximating cube roots | Real numbers and limits Math Foundations 84
Solving quadratics and cubics approximately | Real numbers and limits Math Foundations 85
Newton's method and algebraic curves | Real numbers and limits Math Foundations 86 | N J Wildberger
Logical weakness in modern pure mathematics | Real numbers and limits Math Foundations 87
The decline of rigour in modern mathematics | Real numbers and limits Math Foundations 88
Fractions and repeating decimals | Real numbers and limits Math Foundations 89 | N J Wildberger
Fractions and p-adic numbers | Real numbers and limits Math Foundations 90 | N J Wildberger
Difficulties with real numbers as infinite decimals ( I) | Real numbers + limits Math Foundations 91
Difficulties with real numbers as infinite decimals (II) | Real numbers + limits Math Foundations 92
The magic and mystery of "pi" | Real numbers and limits Math Foundations 93 | N J Wildberger
Problems with limits and Cauchy sequences | Real numbers and limits Math Foundations 94
The deep structure of the rational numbers | Real numbers and limits Math Foundations 95
Fractions and the Stern-Brocot tree | Real numbers and limits Math Foundations 96 | N J Wildberger
The Stern-Brocot tree, matrices and wedges | Real numbers and limits Math Foundations 97
What exactly is a sequence? | Real numbers and limits Math Foundations 98 | N J Wildberger
"Infinite sequences": what are they? | Real numbers and limits Math Foundations 99 | N J Wildberger
Slouching towards infinity: building up on-sequences | Real numbers and limits Math Foundations 100
Challenges with higher on-sequences | Real numbers and limits Math Foundations 101 | N J Wildberger
Limits and rational poly on-sequences | Real numbers + limits Math Foundations 102 | N J Wildberger
Extending arithmetic to infinity! | Real numbers and limits Math Foundations 103 | N J Wildberger
Rational number arithmetic with infinity and more | Real numbers and limits Math Foundations 104
The extended rational numbers in practice | Real numbers and limits Math Foundations 105
What exactly is a limit?? | Real numbers and limits Math Foundations 106 | N J Wildberger
Inequalities and more limits | Real numbers and limits Math Foundations 107 | N J Wildberger
Limits to Infinity | Real numbers and limits Math Foundations 108 | N J Wildberger
Logical difficulties with the modern theory of limits (I)|Real numbers + limits Math Foundations 109
Logical difficulties with the modern theory of limits(II)|Real numbers + limits Math Foundations 110
Real numbers and Cauchy sequences of rationals(I) | Real numbers and limits Math Foundations 111
Real numbers and Cauchy sequences of rationals (II) | Real numbers and limits Math Foundations 112
Real numbers and Cauchy sequences of rationals (III) | Real numbers and limits Math Foundations 113
Real numbers as Cauchy sequences don't work! | Real numbers and limits Math Foundations 114
The mostly absent theory of real numbers|Real numbers + limits Math Foundations 115 | N J Wildberger
Difficulties with Dedekind cuts | Real numbers and limits Math Foundations 116 | N J Wildberger
The continuum, Zeno's paradox and the price we pay for coordinates 117 | Math Foundations
Real fish, real numbers, real jobs | Real numbers and limits Math Foundations 118 | N J Wildberger
Mathematics without real numbers | Real numbers and limits Math Foundations 119 | N J Wildberger
Axiomatics and the least upper bound property (I) | Real numbers and limits Math Foundations 120
Axiomatics and the least upper bound property (I1) | Real numbers and limits Math Foundations 121
Mathematical space and a basic duality in geometry | Rational Geometry Math Foundations 122
Affine one-dimensional geometry and the Triple Quad Formula | Rational Geometry Math Foundations 123
Heron's formula, Archimedes' function, and the TQF | Rational Geometry Math Foundations 124
Brahmagupta's formula and the Quadruple Quad Formula (I) | Rational Geometry Math Foundations 125
Brahmagupta's formula and the Quadruple Quad Formula (II) | Rational Geometry Math Foundations 126
The Cyclic quadrilateral quadrea theorem | Rational Geometry Math Foundations 127a | NJ Wildberger
The Cyclic quadrilateral quadrea theorem (cont.) | Rational Geometry Math Foundations 127b
Robbins' formulas, the Bellows conjecture + polyhedra volumes|Rational Geometry Math Foundations 128
The projective line, circles + a proof of the CQQ theorem| Rational Geometry Math Foundations 129
The projective line, circles and the CQQ theorem (II) | Rational Geometry Math Foundations 130
Ptolemy's theorem and generalizations | Rational Geometry Math Foundations 131 | NJ Wildberger
The Bretschneider von Staudt formula for a quadrilateral | Rational Geometry Math Foundations 132
Higher dimensions and the roles of length, area and volume | Rational Geometry Math Foundations 133
Absolute versus relative measurements in geometry | Rational Geometry Math Foundations 134
NJ's pizza model for organizing geometry | Rational Geometry Math Foundations 135 | NJ Wildberger
The projective Triple Quad Formula | Rational Geometry Math Foundations 136 | NJ Wildberger
Algebraic structure on the Euclidean projective line | Rational Geometry Math Foundations 137
Isometry groups of the projective line (I) | Rational Geometry Math Foundations 138 | NJ Wildberger
Isometry groups of the projective line (II) | Rational Geometry Math Foundations 139 | NJ Wildberger
Isometry groups of the projective line III | Rational Geometry Math Foundations 140 | NJ Wildberger
The three-fold symmetry of chromogeometry | Rational Geometry Math Foundations 141 | NJ Wildberger
Relativistic velocity, core circles and Paul Miller's protractor (I) | Rational Geometry MF142
Relativistic velocity, core circles, and Paul Miller's protractor (II) | Rational Geometry MF143
Relativistic velocity, core circles and Paul Miller's protractor (III) | Rational Geometry MF144
Relativistic velocity, core circles and Paul Miller's protractor IV | Rational Geometry MF145
The Triple spread formula, circumcircles and curvature | Rational Geometry Math Foundations 146
The curvature of a parabola, without calculus | Rational Geometry Math Foundations 147
The projective Quadruple quad formula | Rational Geometry Math Foundations 148 | NJ Wildberger
The circumquadrance of a cyclic quadrilateral|Rational Geometry Math Foundations 149 | NJ Wildberger
MF150: What exactly is a set? | Data Structures in Mathematics Math Foundations | NJ Wildberger
Sets and other data structures | Data Structures in Mathematics Math Foundations 151
Fun with lists, ordered sets, multisets I Data Structures in Mathematics Math Foundations 152
Fun with lists, multisets + sets II | Data structures in Mathematics Math Foundations 153
Fun with lists, multisets and sets III | Data Structures in Mathematics Math Foundations 154
The realm of natural numbers | Data structures in Mathematics Math Foundations 155
The realm of natural number multisets | Data structures in Mathematics Math Foundations 156
The algebra of natural number multisets | Data structures in Mathematics Math Foundation 157
An introduction to the Tropical calculus | Data Structures in Mathematics Math Foundations 158
Inclusion/Exclusion via multisets | Data structures in Mathematics Math Foundations 159
Unique factorization, primes and msets | Data Structures in Mathematics Math Foundations 160
Fun with lists, multisets and sets IV | Data structures in Mathematics Math Foundations 161
Four basic combinatorial counting problems | Data structures in Mathematics Math Foundations 162
Higher data structures | Data structures in Mathematics Math Foundations 163
Arrays and matrices I Data structures in Mathematics Math Foundations 164 | NJ Wildberger
Arrays and matrices II | Data structures in Mathematics Math Foundations 165
Maxel theory: new thinking about matrices II | Data Structures Math Foundations 167
Maxel theory: new thinking about matrices I Data Structures in Mathematics Math Foundations 166
Maxel theory: new thinking about matrices III | Data structures Math Foundations 168
Maxel algebra! I | Data structures in Mathematics Math Foundations 169 | NJ Wildberger
Maxel algebra! II | Data structures in Mathematics Math Foundations | NJ Wildberger 170
Singletons, vexels, and the rank of a maxel I Data structures in Mathematics Math Foundations 171
Singletons, vexels, and the rank of a maxel II | Data structures Math Foundations 172
A disruptive view of big number arithmetic | Data structures in Mathematics Math Foundations 173
Complexity and hyperoperations | Data Structures Math Foundations 174
The chaotic complexity of natural numbers | Data structures in Mathematics Math Foundations 175
The sporadic nature of big numbers | Data Structures in Mathematics Math Foundations 176
Numbers, the universe and complexity beyond us | Data structures Math Foundations 177
The law of logical honesty and the end of infinity | Data structures in Math Foundations 178
Hyperoperations and even bigger numbers | Data structures in Mathematics Math Foundations 179
The successor - limit hierarchy | Data Structures in Mathematics Math Foundations 180
The successor-limit hierarchy and ordinals I Data structures in Mathematics Math Foundations 181
The successor-limit hierarchy and ordinals II | Data structures Math Foundations 182
Limit levels + self-similarity in successor-limit hierarchy | Data structures Math Foundations 183
Reconsidering natural numbers and arithmetical expressions | Data structures Math Foundations 184
The essential dichotomy underlying mathematics | Data Structures Math Foundations 185
The curious role of "nothing" in mathematics | Data Structures Math Foundations 186
Multisets and a new framework for arithmetic | Data Structures Math Foundations 187
Naming and ordering numbers for students | Data structures in Mathematics Math Foundations 188
The Hindu Arabic number system revisited | Data Structures in Mathematics Math Foundations 189
Numbers, polynumbers and arithmetic with vexels I | Data Structures Math Foundations 190
Numbers, polynumbers, and arithmetic with vexels II | Data Structures in Math Foundations 191
Arithmetic with base 2 vexels | Data Structures in Mathematics Math Foundations 192
A new look at Hindu Arabic numbers and their arithmetic | Data structures in Math Foundations 193
Arithmetical expressions as natural numbers | Data structures in Mathematics Math Foundations 194
Divisibility of big numbers | Data Structures in Mathematics Math Foundations 195 | NJ Wildberger
Back to Gauss and modular arithmetic | Data Structures in Mathematics Math Foundations 196
Modular arithmetic with Fermat and Euler | Data Structures in Mathematics Math Foundations 197
Unique factorization and its difficulties I Data Structures in Mathematics Math Foundations 198
Unique factorization and its difficulties II | Data Structures Math Foundations 199
MF200: Mission impossible: factorize the number z | Data Structures in Mathematics Math Foundations
A celebration of 200 videos of MathFoundations | Data Structures Math Foundations 201
Reciprocals, powers of 10, and Euler's totient function I | Data Structures Math Foundations 202
Reciprocals, powers of 10, and Euler's totient function II | Data Structures Math Foundations 203
Euclid + the failure of prime factorization for z | Data Structures Math Foundations 204
Negative numbers, msets, and modern physics | Data Structures in Mathematics Math Foundations 205
A new trichotomy to set up integers | Data structures in Mathematics Math Foundations 206
Integral vectors and matrices via vexels and maxels I | Data structures Math Foundations 207
Integral vectors and matrices via vexels and maxels II | Data structures Math Foundations 208
A broad canvas: algebra with maxels from integers | Data Structures Math Foundations 209
Numbers as multipliers + particle/antiparticle duality I | Data Structures Math Foundations 210
Numbers as multipliers + particle/antiparticle duality II | Data Structures Math Foundations 211
The anti operation in mathematics | Data structures in Mathematics Math Foundations 212
An introduction to abstract algebra | Abstract Algebra Math Foundations 213 | NJ Wildberger
Logical challenges with abstract algebra I | Abstract Algebra Math Foundations 214 | NJ Wildberger
Logical challenges with abstract algebra II | Abstract Algebra Math Foundations 215 | NJ Wildberger
The fundamental dream of algebra | Abstract Algebra Math Foundations 216 | NJ Wildberger
What is the Fundamental theorem of Algebra, really? | Abstract Algebra Math Foundations 217
Why roots of unity need to be rethought | Abstract Algebra Math Foundations 218 | NJ Wildberger
Linear spaces and spans I | Abstract Algebra Math Foundations 219 | NJ Wildberger
Linear spaces and spans II | Math Foundations 220 | N J Wildberger
Bases + dimension for integral linear spaces I|Abstract Algebra Math Foundations 221 | NJ Wildberger
Lattice relations + Hermite normal form|Abstract Algebra Math Foundations 224 | NJ Wildberger
Bases and dimension for integral linear spaces II | Abstract Algebra Math Foundations 222
Integral row reduction + Hermite normal form|Abstract Algebra Math Foundations 223 | NJ Wildberger
Relations between msets | Abstract Algebra Math Foundations 225 | NJ Wildberger

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