posted by Diane .
Do I have this right?
Jane or Tom will wake up Tanner this evening.
Antecedent: Jane or Tom
Consequent: Will wake up Tanner this evening.
Contradictory: Neither Jane or Tom will wake up Tanner.
you have all of the othet things right but i am not so sure what the contrapositive would be
Someone else might wake up Tanner.
I see nothing conditional about this sentence. It's stating a fact without any "if" statements.