Proof of `Semirings with monus` (3rd statement)

groundedproofs/Lax392996Proofs/Bridge.lean · lax-392996

What this proof establishes

no assumptions

def✓Lax392996.SemiringsWithMonus (3rd statement)

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

The first equation of the paper's definition, from the library's $add_monus$ .