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Proof step 2 from proof sgn-mklist-03 (previous step)

⊦ n = 0, sgn(mklist(boolvar, n)) = boolvar '

User applied rule structural induction

And obtained the following new goals

Proof step 3:
∀ boolvar. m = 0 ∨ sgn(mklist(boolvar, m)) = boolvar ' ⊦ m +1 = 0 ∨ sgn(mklist(boolvar, m +1)) = boolvar '

Rule argument

indvar: n

Additional information

Used simplifier rules: nat freely generated by 0, +1;;