請問幾題離散數學

[iamnewid (http://98.to/IOO XD)]

有幾題沒有解答 就請網友幫忙一下囉

1.Find the truth table of the compound proposition
(p \/ q) -> (p /\ -r)

2.Show that if A is a subset of B, then the power set of A is
a subset of the power set B.

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