Lax Lean Archive

Proof of `Semantics and definability in FO(LFP)`

groundedproofs/Lax751879Proofs/Positivity.lean · lax-751879

What this proof establishes

no assumptions

def✓Lax751879.FixedPointSemantics

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