ThmDex – An index of mathematical definitions, results, and conjectures.
Set of symbols
Alphabet
Deduction system
Theory
Zermelo-Fraenkel set theory
Set
Binary cartesian set product
Binary relation
Map
Countable map
Array
Matrix
Matrix transpose
Symmetric matrix
Matrix quadratic form
Zero definite complex matrix
Definition D5205
Zero definite basic real matrix
Results
Real square matrix antisymmetric part is zero definite