11 lines
323 B
Text
11 lines
323 B
Text
import logic
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using tactic
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theorem tst {A B : Prop} (H1 : A) (H2 : B) : A ∧ B ∧ A
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:= by apply and_intro; state; assumption; apply and_intro; !assumption
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check tst
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theorem tst2 {A B : Prop} (H1 : A) (H2 : B) : A ∧ B ∧ A
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:= by !([apply @and_intro | assumption] ; trace "STEP"; state; trace "----------")
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check tst2
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