I need to prove that the following argument is valid using Natural Deduction:
1. $[\lnot (B \lor \lnot I) \rightarrow (\lnot L \land J)]$
2. $[\lnot L \rightarrow (M \land B)]$
3. $\lnot (B \lor \lnot I)$
$\therefore \quad (M \lor E)$
I'm very new to this, so I'd appreciate very much if someone can help me though the process. What's listed above are the premises, from which I need to determine if they validly lead to the conclusion at the bottom.