6 lines
No EOL
215 B
Text
6 lines
No EOL
215 B
Text
# Set: pp::colors
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Set: pp::unicode
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Proved: T1
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theorem T1 (A B : Bool) (assumption : A ∧ B) : B ∧ A :=
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let lemma1 := and::eliml assumption, lemma2 := and::elimr assumption in and::intro lemma2 lemma1
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# |