We have seen that we can deduce new conditionals from old. But where do we get conditionals to start with? Fortunately, we can get conditionals from our three principles. Premise (5) in the LSAT ...

Arguments are attempts to persuade by providing reasons (or premises) in support of a particular claim (or conclusion). There are two broad kinds of argument: deductive and inductive. In a deductive ...

The Mathematics Teacher (MT), an official journal of the National Council of Teachers of Mathematics, is devoted to improving mathematics instruction from grade 8-14 and supporting teacher education ...

All people are mortal. Socrates is a person. Therefore: Socrates is mortal. This is the classic example of the West’s preferred form of reasoning— deductive logic. We have long professed to prefer it ...