13 lines
263 B
Text
13 lines
263 B
Text
Set: pp::colors
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Set: pp::unicode
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Imported 'heq'
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Set: lean::pp::implicit
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Assumed: g
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Assumed: B
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Assumed: B'
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Assumed: H
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g B
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===>
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g B'
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@congr2 TypeM TypeM B B' g (@subst Type B B' (λ x : Type, @eq TypeM B x) (@refl TypeM B) H)
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@eq TypeM (g B) (g B')
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