Answer Happy

hi, i need help in this question please, step by step withexplanation.thank you.
1 Inference proofs Use laws of equivalence and inference rules to show how you can derive the conclusions from the given premises. Not all givens may be necessary Be sure to cite the rule and line number(s) used at each step. a) Givens Hint: Use the direct proof rule here 1 (p^t) → r 2 q→ (u^t) 3 u p
b) Givens 1\x(A(x) v B(x)) 2 Vr(-B(x) V D(x)) 3 Vx(C(x) → ¬D(x)) - 4 3x¬A(x)