intro h hSet
L : Type u
ν : Type v
inst✝² : LitVar L ν
inst✝¹ : LawfulLitVar L ν
inst✝ : DecidableEq ν
τ : PropAssignment ν
l : L
x : ν
p : Bool
⊢ ¬τ (toVar l) = polarity l → PropAssignment.set τ x p (toVar l) = polarity l → l = mkLit L x p
L : Type u
ν : Type v
inst✝² : LitVar L ν
inst✝¹ : LawfulLitVar L ν
inst✝ : DecidableEq ν
τ : PropAssignment ν
l : L
x : ν
p : Bool
h : ¬τ (toVar l) = polarity l
hSet : PropAssignment.set τ x p (toVar l) = polarity l
⊢ l = mkLit L x p