Simplify the following propositions as much as possible.
1. (¬p ⇒ q) ∧ (q ∧ p ⇒ ¬p)
2. (p ⇒ ¬p) ⇒ ((q ⇒ (p ⇒ p)) ⇒ p)
3.(p ⇒ p) ⇒ (¬p ⇒ ¬p) ∧ q
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