11 lines
215 B
Text
11 lines
215 B
Text
theorem ex1 : True := by
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refine ?a
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refine ?a
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refine ?a
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exact True.intro
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axiom ax.{u} {α : Sort u} (a : α) : α
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theorem ex2 : True := by
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refine ?a
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refine ax ?a -- Error trying to assign `?a := ax ?a`
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