first | exact isFreeInInd.pred_const_ X xs h1 | exact isFreeInInd.pred_var_ X xs h1 | exact isFreeInInd.eq_ x y h1 | exact isFreeInInd.def_ X xs h1
v : VarName
X : DefName
xs : List VarName
h1 : v ∈ xs
⊢ isFreeInInd v (def_ X xs)
no goals