intro V
P U : Formula
Δ : Set Formula
h1_Δ : ∀ U' ∈ Δ, U'.IsPrime
h1_U : U.IsPrime
h2 : U ∉ Δ
h3 : ∀ (V : VarBoolAssignment), IsDeduct (evalPrimeFfToNot V '' Δ ∪ {evalPrimeFfToNot V U}) P
⊢ ∀ (V : VarBoolAssignment), IsDeduct (evalPrimeFfToNot V '' Δ) P
P U : Formula
Δ : Set Formula
h1_Δ : ∀ U' ∈ Δ, U'.IsPrime
h1_U : U.IsPrime
h2 : U ∉ Δ
h3 : ∀ (V : VarBoolAssignment), IsDeduct (evalPrimeFfToNot V '' Δ ∪ {evalPrimeFfToNot V U}) P
V : VarBoolAssignment
⊢ IsDeduct (evalPrimeFfToNot V '' Δ) P