simp only [relate] at v_γ_w
W✝ : Type
M : KripkeModel W✝
v w : W✝
β : Program
v_γ_w : relate M (∗β) v w
⊢ ∃ Fδ ∈ H (∗β), (M, v)⊨Fδ.1 ∧ relateSeq M Fδ.2 v w
W✝ : Type
M : KripkeModel W✝
v w : W✝
β : Program
v_γ_w : Relation.ReflTransGen (relate M β) v w
⊢ ∃ Fδ ∈ H (∗β), (M, v)⊨Fδ.1 ∧ relateSeq M Fδ.2 v w