15 lines
334 B
Text
15 lines
334 B
Text
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Set: pp::colors
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Set: pp::unicode
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Assumed: f
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Assumed: g
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Assumed: Axf1
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Assumed: Axfg
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Assumed: a
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Assumed: b
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Axfg : ∀ x : ℕ, g x x = x
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Axf1 : ∀ x : ℕ, f (f x) = x
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a trans (congr2 (g a) (Axf1 a)) (Axfg a)
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g a a congr2 (g a) (Axf1 a)
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a trans (congr2 (g a) (Axf1 a)) (Axfg a)
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a trans (congr2 (g a) (Axf1 a)) (Axfg a)
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