16 lines
438 B
Text
16 lines
438 B
Text
import macros.
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theorem simple (p q r : Bool) : (p ⇒ q) ∧ (q ⇒ r) ⇒ p ⇒ r
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:= assume H_pq_qr H_p,
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let P_pq := and::eliml H_pq_qr,
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P_qr := and::elimr H_pq_qr
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in P_qr ◂ (P_pq ◂ H_p)
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set::option pp::implicit true.
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print environment 1.
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theorem simple2 (a b c : Bool) : (a ⇒ b ⇒ c) ⇒ (a ⇒ b) ⇒ a ⇒ c
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:= assume H_abc H_ab H_a,
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(H_abc ◂ H_a) ◂ (H_ab ◂ H_a)
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print environment 1.
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