lean2/tests/lean/778.hlean.expected.out

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778.hlean:7:4: proof state
⊢ bnot (bnot ff) = ff
⊢ bnot (bnot tt) = tt
⊢ bnot (bnot ff) = ff
⊢ bnot (bnot tt) = tt
⊢ bool.cases_on (bnot ff) ?M_1 ?M_2 = eq.ap bnot (bool.cases_on ff ?M_3 ?M_4)
⊢ bool.cases_on (bnot tt) ?M_1 ?M_2 = eq.ap bnot (bool.cases_on tt ?M_3 ?M_4)