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∀x∀y∀z(Rx y → (Ryz → P x z)), Rab, Rbc ⊢ ∃x∃y(Rx y ∧ ∃zP x z) I want to show that ∀x∀y∀z(Rx y → (Ryz → Pxz)), Rab, Rbc ⊢ ∃x∃y(Rx y ∧ ∃zPxz). ∀x∀y∀z(Rx y → (Ryz → P x z
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Document Date: 2015-09-03 07:54:08


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