(1) 1. (A > ~R) > W
2. ~ (A & R) // W v ~R
(2) 1. H . Y
2. H & B // Y
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Here, in line 4, we have the reason we used De Morgan’s in line 3, i.e. we wanted to change line 2 into an equivalent version on which we could use Contraposition, which converts conjunctions (&) or disjunctions (v) into conditionals...
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