Two-Column Proofs Practice Tool. Title. Difficulty. Solved By. Date Added. Complementary Angles 1. easy. 335 (65%) 2008-12-27.
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View 6 - Practice Proofs - answer key.docx from PHILOS 211 at University of Wisconsin, Madison. Practice Proofs Key 1. D → B, D → E, ⊢ D → (B & E) 1 (1) D → B Premise 2 3 1,3 (2) D → E (3) D