30 lines
754 B
Text
30 lines
754 B
Text
Theorem T1 (A B : Bool) : A /\ B => B /\ A :=
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Discharge (fun H : A /\ B,
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let main : B /\ A :=
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(let H1 : B := _,
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H2 : A := _
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in _)
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in main).
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apply conj_hyp_tac.
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assumption.
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done.
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apply conj_hyp_tac.
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assumption.
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done.
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apply Conj.
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assumption.
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done.
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(**
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simple_tac = REPEAT(ORELSE(conj_hyp_tac, conj_tac, assumption_tac))
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**)
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Theorem T2 (A B : Bool) : A /\ B => B /\ A :=
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Discharge (fun H : A /\ B,
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let H1 : A := _,
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H2 : B := _,
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main : B /\ A := _
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in main).
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apply simple_tac. done.
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apply simple_tac. done.
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apply simple_tac. done.
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