Encyclopedia/All topics/Foundation
Foundation
Articles 2,641–2,700 of 2,979. Alphabetical by title.
Foundation Singular Pair Pair Ses Degreewise Short Exact
A machine-checked lemma in the Recognition Science library shows that an injective continuous map between spaces yields an exact sequence of homology groups at every dimension, a s
Foundation Singular Pair Relative Homology Id Is Zero
When a space is compared with itself, its relative homology groups vanish; here is what that theorem does and does not say.
Foundation Singular Pair To Sset Map App Injective
An injective continuous map between spaces forces a one-to-one correspondence at every level of the singular simplex construction.
Foundation Singular Prism
A machine-checked library proves that two continuously deformable shapes have identical internal structure, a key idea for how Recognition Science models change.
Foundation Singular Prism Homotopic Maps Induce Same Homology
Two continuous maps that can be deformed into each other produce identical algebraic measurements of a space's holes.
Foundation Singular Prism Is Iso Homology Map Of Homotopy Equiv
A central theorem of algebraic topology, proved in the framework's machine-checked library, shows that spaces connected by a continuous deformation have identical homology gro
Foundation Singular Prism Prism Comp Face Bot
A theorem about the bottom edge of a geometric prism shows the framework's library of formal theorems can certify the exact boundary behavior of a standard construction.
Foundation Singular Prism Prism Comp Face Cancel
A theorem about geometric building blocks shows that two different ways to build a prism from a face produce the same shape, a fact that keeps the framework's counting machine
Foundation Singular Prism Prism Comp Face Of Le
A machine-checked theorem in the Recognition Science library pins down how a standard geometric construction, the prism, interacts with the boundary faces of a simplex.
Foundation Singular Prism Prism Comp Face Top
A small identity about the edges of a geometric prism turns out to be the hinge that makes the whole framework's counting machinery consistent.
Foundation Singular Sphere
A single point in space, examined closely enough, carries a complete record of the space around it.
Foundation Singular Sphere Geometry
A machine-checked library builds the geometry of spheres from two poles and an open cover, then proves which homology groups vanish.
Foundation Singular Sphere Geometry Abs Eq One Of Sq Eq One
A machine-checked library of formal theorems proves that on a circle, only the two poles have a coordinate whose square is one.
Foundation Singular Sphere Geometry H1 S1 Ne Zero
A machine-checked proof that the circle has a one-dimensional hole, a fact classical topology has known for over a century, now lives inside the Recognition Science framework'
Foundation Singular Sphere Geometry Sphere Dim Eq Of Homotopy Equiv
In topology, a sphere's dimension is a matter of homotopy: the declaration sphere_dim_eq_of_homotopyEquiv proves that if a space is homotopy equivalent to an n-sphere, then it
Foundation Singular Sphere Geometry Sphere Homology Vanish
A theorem about spheres shows that most of their higher-dimensional holes simply do not exist, and it does so without any special assumptions.
Foundation Singular Sphere Geometry Sphere Top Ne Zero
The declaration proves the circle has a hole that cannot be shrunk away, a fact the framework uses to build its model of recognition.
Foundation Singular Sphere Geometry Spheres Not Homotopy Equivalent
Two spheres of different dimension cannot be continuously deformed into each other, a fact the framework's machine-checked library proves for its own sphere model.
Foundation Singular Sphere Is Iso Aug H Of Path Connected
A machine-checked theorem shows that in any path-connected space, counting the connected components is the same as counting the integers, a bridge that Recognition Science uses to
Foundation Singular Sphere Is Iso Homology Map Aug To
A machine-checked theorem shows that for any path-connected space, counting points by a clopen set gives an isomorphism on the zeroth homology group.
Foundation Singular Sphere Is Zero H1
In algebraic topology, the zero-dimensional homology of a single point is the integers; Recognition Science's machine-checked library proves all higher homology groups of a po
Foundation Singular Sphere Is Zero H1 Of Contractible
A machine-checked proof that a space which can shrink to a point has no one-dimensional holes, and the precise limits of that statement.
Foundation Singular Sphere Is Zero Homology Of Contractible
A machine-checked proof that a contractible space has no higher-dimensional holes, and a precise statement of what that does not say.
Foundation Singular Sphere Is Zero Of Is Zero Inter
A machine-checked proof shows that the 0th homology of the singular sphere is the integers, with higher homology vanishing.
Foundation Singular Subdivision
Subdivision is the act of cutting a shape into smaller pieces, a classical idea that gains new power when the pieces are kept in a discrete record.
Foundation Singular Subdivision Abnd Comp Acone Zero
In algebraic topology, the boundary of a cone over a simplex is the original simplex itself; a machine-checked proof now records this fact in a formal library.
Foundation Singular Subdivision Asub Iter Support Bound
Repeatedly subdividing a geometric object into smaller pieces leaves the object's overall shape untouched, but the process must track which pieces are which.
Foundation Singular Subdivision Exists Asub Iter Small
A machine-checked theorem shows that repeatedly subdividing a geometric shape into smaller pieces always produces a well-defined, finite process, a result with a precise scope.
Foundation Singular Subdivision Exists Sd Op Iter Small
A machine-checked theorem shows that repeatedly subdividing a space's singular chains always yields a well-defined map, and it says nothing about what those chains represent.
Foundation Singular Subdivision T Op Chain Homotopy Succ
A machine-checked theorem shows that repeatedly subdividing a shape's building blocks changes its boundary in a precise, controlled way.
Foundation Singular Subdivision T Op Chain Homotopy Zero
A formal theorem in the Recognition Science library shows that a certain subdivision operator agrees with the identity at the lowest dimension, up to a controlled error term.
Foundation Singular Subdivision T Op Iter Chain Homotopy Succ
In algebraic topology, a chain homotopy is a formal way to say two ways of cutting a space into pieces give the same answer about holes; here a machine-checked proof shows one such
Foundation Singular Subdivision T Op Iter Chain Homotopy Zero
Subdividing a topological space into smaller pieces is a standard tool in algebraic topology; one framework theorem shows exactly how the first step of that process behaves.
Foundation Smgauge Algebra
The Standard Model's force carriers number exactly twelve, and a machine-checked proof derives that count from the symmetries of a cube.
Foundation Smgauge Algebra Factor Count
A machine-checked theorem counts the three gauge factors of the Standard Model, and the count is 3.
Foundation Smgauge Algebra Hyper Gen Count
In the Standard Model of particle physics, the weak hypercharge force has exactly one kind of force carrier, a fact the Recognition Science framework derives from its cube-automorp
Foundation Smgauge Algebra Sm Total Gen Count
The Standard Model's gauge forces are carried by exactly 12 force-mediating fields; a machine-checked library now derives that count from a cube's symmetries.
Foundation Smgauge Algebra Smgauge Algebra Cert
A machine-checked certificate records that the Standard Model's three gauge groups have exactly 8, 3, and 1 generators, adding to 12.
Foundation Smgauge Algebra Smgauge Factor
A small formal object names the three forces of the Standard Model and counts their force carriers, tying a cube's symmetry to the number 12.
Foundation Smgauge Algebra Weak Gen Count
The weak nuclear force, which drives radioactive decay, is carried by exactly three force particles, a count the Recognition Science framework derives from the geometry of a cube.
Foundation Smhypercharge From Cube
A machine-checked library shows the Standard Model's hypercharge assignments fit exactly into the cube-completion's 1/6 unit, with all anomaly sums vanishing.
Foundation Smhypercharge From Cube Generation Weyl State Count Eq 16
One generation of Standard Model matter contains exactly sixteen distinct particle states, a count that a machine-checked proof verifies from a cube-based counting scheme.
Foundation Smhypercharge From Cube Su2 Squared U1 Anomaly6 Eq Zero
A machine-checked library proves the Standard Model's weak hypercharge assignments cancel exactly, a consistency condition that must hold for the theory to be mathematically s
Foundation Smhypercharge From Cube Su3 Squared U1 Anomaly6 Eq Zero
The Standard Model's hypercharge assignments pass a consistency check: their quantum anomalies cancel exactly, a fact a machine-checked proof verifies.
Foundation Smhypercharge From Cube Three Generation Weyl State Count Eq 48
A machine-checked theorem shows that three generations of Standard Model particles contain exactly 48 Weyl states, matching the size of a cube's signed permutation group.
Foundation Sociology
A framework for measuring social distance, where the cost of a gap between groups follows a single forced mathematical curve.
Foundation Spatial Topology Forcing
A compact, featureless substrate with no preferred direction must wrap into a 3-torus, giving space exactly three dimensions.
Foundation Spatial Topology Forcing Isotropy Forces B1 Eq 3
A machine-checked proof shows that a space with no preferred direction must have exactly three independent directions, if it is flat, compact, and orientable.
Foundation Spatial Topology Forcing Self Similarity Forces Flat
A machine-checked theorem shows that if the universe's basic recognition process is self-similar, space cannot be curved.
Foundation Spatial Topology Forcing Spatial Dimension Eq 3
A compact, flat, featureless 3-manifold must be a 3-torus, and its three independent directions are the three spatial dimensions.
Foundation Spatial Topology Forcing Spatial Topology Forcing
A machine-checked theorem derives three spatial dimensions from symmetry constraints, and it stops well short of claiming the universe is a 3-torus.
Foundation Spatial Topology Forcing Spatial Topology Forcing Cert
A machine-checked certificate bundles the proof that the recognition substrate's symmetry forces three-dimensional space, without claiming to derive the physical bridge.
Foundation Spatial Topology Forcing Spatial Topology Forcing Cert Inhabited
A machine-checked certificate packs the argument that the universe's spatial substrate must be a 3-torus, yielding three dimensions.
Foundation Spatial Topology Forcing Substrate Symmetry Properties
A compact, flat, featureless 3-torus is the only spatial shape that satisfies five symmetry conditions at once.
Foundation Spin Statistics
Foundation spin statistics derives the spin-statistics connection from the eight-tick recognition cycle: spin-1/2 states anticommute, spin-1 states commute, and Pauli exclusion fol
Foundation Spin Statistics Boson Rotation Phase Pos One
A machine-checked theorem shows that in the Recognition Science framework, an integer-spin particle returns to its original quantum state after a full rotation, a fact with deep co
Foundation Spin Statistics Exchange Sign Fermion
When two identical particles swap places, the laws of quantum mechanics can flip the sign of their shared wavefunction; this is the exchange sign, and it decides whether matter can
Foundation Spin Statistics Fermion Rotation Phase Neg One
A spin-1/2 particle returns to its quantum state only after two full rotations, and the minus sign that marks the first turn is the same sign that keeps two electrons apart.
Foundation Spin Statistics Pauli Exclusion Simple
A simple algebraic fact about complex numbers underlies the Pauli exclusion principle in the Recognition Science framework.
Foundation Spin Statistics Spin Statistics Certificate
The spin-statistics theorem links a particle's spin to its behavior when two identical particles are swapped; this page explains what a machine-checked proof of that link does