homotopy theory, (∞,1)-category theory, homotopy type theory
flavors: stable, equivariant, rational, p-adic, proper, geometric, cohesive, directed…
models: topological, simplicial, localic, …
see also algebraic topology
Introductions
Definitions
Paths and cylinders
Homotopy groups
Basic facts
Theorems
(fundamental theorem of invertible matrices)
For and a square matrix, the following are equivalent:
is an invertible matrix;
is the matrix product of elementary matrices?.
Wikipedia, Invertible matrix
WolframMathWorld, Invertible Matrix Theorem
Last revised on December 1, 2019 at 04:42:35. See the history of this page for a list of all contributions to it.