Created
May 1, 2024 03:57
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| theory Scratch | |
| imports CTT.CTT | |
| begin | |
| lemma | |
| assumes "X type" "⋀x. x:X ⟹ P(x) type" "Q type" | |
| assumes "g : ∑x:X. (P(x) ⟶ Q)" | |
| shows "h : (∏x:X. P(x)) ⟶ Q" | |
| using assms | |
| sorry | |
| end |
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