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Proof of `Cancelling injective and surjective terms`

groundedproofs/Lax149335Proofs/Results/Preliminaries.lean · lax-149335

What this proof establishes

no assumptions

Assuming the claims on the left, the claim on the right holds — checked by the archive's pipeline. Proof code is not displayed here.

Read the Lean proof on GitHub

Description

Compose with the one-sided inverse and use the category axioms.