Theorem: LeanSAT.Model.PropFun.satisfies_biImpl (LeanSAT/Model/PropFun.lean)

State before:
ν : Type u_1
φ₁ φ₂ : PropFun ν
τ : PropAssignment ν
⊢ τ ⊨ biImpl φ₁ φ₂ ↔ (τ ⊨ φ₁ ↔ τ ⊨ φ₂)
Tactic:
simp [sEntails, satisfies]
State after:
no goals