contradiction
case a
a : String
n : ℕ
nv1 : NoVars (fromNat n↗)
nv2 : NoVars O
e : Sinf_const.eval (Sinf_const.coerce (fromNat n↗) nv1) ≠ Sinf_const.eval (Sinf_const.coerce O nv2)
p : Sinf_const.eval (Sinf_const.coerce (fromNat n↗↗) (NoVars.S nv1)) = Sinf_const.eval (Sinf_const.coerce O NoVars.O)
⊢ False
no goals