forallX: an Introduction to Formal Logic

Logic is the business of evaluating arguments, sorting good ones from bad ones. In everyday language, we sometimes use the word ‘argument’ to refer to belligerent shouting matches. If you and a friend have an argument in this sense,
things are not going well between the two of you.
In logic, we are not interested in the teeth-gnashing, hair-pulling kind of argument. A logical argument is structured to give someone a reason to believe
some conclusion.

https://textbooks.opensuny.org

2015

Baihaqi

Creative Commons

English