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Theorem at-dot
⊦ A.cols = B.rows → (A * B)[m, n] = Σ(A.cols, λ k. A[m, k] * B[k, n])
Type: An axiom
Validity: The proof is valid.
Features: localsimp, simp,
Comment:
Used by:
dot-assoc
,
Used by units in proved state:
multiply
,
Proof exists?: No