English
Equivalence of the ofMatrix and the entrywise representation: for any c, ofMatrix c x y is equivalent to ∀ i j, c(entry i j x, entry i j y).
Русский
Эквивалентность between ofMatrix и поэлементного представления: для любого c, ofMatrix c x y эквивалентно ∀ i j, c (x_{ij}) (y_{ij}).
LaTeX
$$ofMatrix_rel : ofMatrix c x y ↔ ∀ i j, c (single i j x) (single i j y)$$
Lean4
@[simp]
theorem ofMatrix_rel [DecidableEq n] {c : RingCon (Matrix n n R)} {x y : R} :
ofMatrix c x y ↔ ∀ i j, c (single i j x) (single i j y) :=
Iff.rfl