Lax Lean Archive

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Proof of `Ignoring empty summands`

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

What this proof establishes

no assumptions

cla✓Lax149335.EmptySummands

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 empty case contributes nothing to the homomorphism, by the axioms about empty lists (Axioms 10 and 14).