Truth Tables!

Here is the first problem we have gotten that has to do with truth
tables. I'm not even sure how you would be able to contruct one on
these boards, but any help/advice would be great. Thanks!

Problem goes like this:
3. Say whether each of the following are truth-functionally true,
truth-functionally false, or truth-functionally indeterminate by
constructing a truth-table. (You may use a shortcut method if you
like).
a) (E≡H) ⊃ (-E⊃-H)
b) ([(C⊃D) & (D⊃E)] & C) & -E
c) [(CvD) ≡ C] ⊃ -C
d) (B⊃H) & (B⊃-H)


Thanks!

.

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