4ba097a141
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
12 lines
433 B
Text
12 lines
433 B
Text
Set: pp::colors
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Set: pp::unicode
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Proved: simple
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theorem simple (p q r : Bool) : (p ⇒ q) ∧ (q ⇒ r) ⇒ p ⇒ r :=
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Discharge
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(λ H_pq_qr : (p ⇒ q) ∧ (q ⇒ r),
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Discharge
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(λ H_p : p,
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let P_pq : p ⇒ q := Conjunct1 H_pq_qr,
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P_qr : q ⇒ r := Conjunct2 H_pq_qr,
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P_q : q := MP P_pq H_p
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in MP P_qr P_q))
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