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woahjenjen woahjenjen
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6 years ago
Consider this proof, (1.)E / C v (E v D) (2.) E v D (3.) (E v D) v C (4.) C v (E v D) What is the justification for line 2?
 
  A) 1 Simp B) 1 Add C) 1 Com
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6 years ago
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