Helper

sub_coker_colspan

File dumas2017dual/lib/rouche_capelli.v
Section FiniteSolutionCounting
Type Lemma
Proof Lines 8

Signature

Lemma sub_coker_colspan m n (A : 'M[K]_(m, n)) : forall x : 'cV[K]_n, x \in colspan (cokermx A) -> A *m x == 0.

Description

Vectors in cokernel column span are in kernel: if x ∈ colspan(coker A), then Ax = 0. Connects cokernel with null space.

Uses (0)

This lemma does not use any other lemmas from the stats.

Used By (0)

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