2015-11-21 01:03:17 +00:00
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x = y → true
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T → x = y → true
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2016-06-01 02:14:42 +00:00
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∀ a, x = a → a = y
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∀ a, a = x → true
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2015-11-21 01:03:17 +00:00
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T → T → x = y → true
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2015-11-07 20:54:01 +00:00
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T → T → x = y → P y
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2016-06-01 02:14:42 +00:00
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(∀ x, P x ↔ Q x) → Q x
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Prop → (∀ x, P x ↔ Q x) → Prop → Q x
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∀ a, (∀ x, P x ↔ Q x) → a ∨ Q x
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(∀ x, P x ↔ Q x) → Q x
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∀ a, T → (∀ x, P x ↔ Q x) → Q a
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∀ a a_1, a = a_1 → P a_1
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∀ a a_1 a_2, a = a_1 → a_1 = a_2 → P a_2
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∀ a a_1, a = a_1 → (∀ w, P w ↔ Q w) → Q a_1
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