Question 1045062
1. A>~B  -----------------------hypothesis
2. BvD   -----------------------hypothesis
3. ~B > D ---------------------material implication on #2
4. A > D -----------------------hypothetical syllogism from #1 and #3
5. ~Dv~C ---------------------hypothesis
6. D > ~C ----------------------material implication on #5
7. A > ~C  ---------------------hypothetical syllogism from #4 and #6
8. E > C  -----------------------hypothesis
9. ~C > ~E  --------------------contrapositive of #8
10. A > ~E ---------------------hypothetical syllogism from #7 and #9