10 lines
202 B
Text
10 lines
202 B
Text
exit
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import logic
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open tactic
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notation `(` h `|` r:(foldl `|` (e r, tactic.or_else r e) h) `)` := r
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infixl `;`:15 := tactic.and_then
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definition mytac := apply @and.intro; apply @eq.refl
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check @mytac
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