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Proof step 1 from proof inv-one (conclusion)

⊦ bitsinvert(boolvar ') = (¬ boolvar)'

User applied rule structural induction

And obtained the following new goals

Proof step 2:
⊦ bitsinvert(true ') = (¬ true)'
Proof step 5:
⊦ bitsinvert(false ') = (¬ false)'

Rule argument

indvar: boolvar

Additional information

Used simplifier rules: bool freely generated by true, false;;