8 lines
No EOL
208 B
Text
8 lines
No EOL
208 B
Text
Theorem T (a b : Bool) : a \/ b => (not b) => a := _.
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apply imp_tactic
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apply imp_tactic
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apply disj_hyp_tactic
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apply assumption_tactic
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apply absurd_tactic
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done
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Show Environment 1. |