assumption
case right
E : Env
Γ : List (VarName × MetaVarName)
Δ : List Formula
F : Formula
h1_Γ : List (VarName × MetaVarName)
h1_Δ : List Formula
h1_phi : Formula
h1_x : VarName
h1_1 : IsMetaVarOrAllDefInEnv E h1_phi
h1_2 : NotFree h1_Γ h1_x h1_phi
⊢ IsMetaVarOrAllDefInEnv E (forall_ h1_x h1_phi)
no goals