If-then statements lead to powerful deductions. Every if-then statement has a valid contrapositive, such as: "If you did not pass the bar exam, you must not be a lawyer." Setting up the logic ...

Dayvion McKnight’s first season at Xavier isn’t going how he wanted it to. McKnight has been away from the team for some time this week to attend the funeral of his older brother, Trey, who passed ...

Strict logic holds that the hypothesis that “all ravens are black” is equivalent to its contrapositive that “all nonblack things are not ravens.” So finding a single black raven adds a tiny bit of ...

All the major methods of proof - direct method, cases, induction, contradiction and contrapositive - are featured. Concrete examples are used throughout, and you'll get plenty of practice on topics ...

Norwegian Minister of Foreign Affairs Espen Barth Eide recently told a Ukrainian journalist that “I think we should all be honest and say: Nobody does enough” to help Ukraine defeat Putin’s ...