In the standard library, we should use explicit universe variables for universe polymorphic definitions. Users that want to declare universe polymorphic definitions but do not want to provide universe level parameters should use Type _ or Type*
8 lines
304 B
Text
8 lines
304 B
Text
open tactic
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check (do { trace "foo", trace_state } : tactic unit)
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axiom Sorry {A : Type*} : A
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check
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λ (A : Type*) (a b c d : A) (H₁ : a = b) (H₂ : c = b) (H₃ : d = c),
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have a = c, by do { trace "have-expr...", trace_state, transitivity, assumption, symmetry, assumption },
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show a = d, from Sorry
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