Proof of `The Ehrenfeucht–Fraïssé method`
groundedproofs/Lax945089Proofs/Bridge.lean · lax-945089
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.
Description
The library's induction on the sentence, one round per quantifier.