1. Logic

Definition                                                

Logic is all about search for the truth based on available fact. It seeks to encourage people to think and to produce better ideas in order to convince others. Logic is also the study of how one thing relate or differs from another thing. For instance, how truth or falsity of one thing relate to the truth and falsity of another. If you say that something is sweet, you are indirectly saying that there are other things that are not. In that context, you have to give facts to explain what you mean that something is sweet/bitter. We may conclude that Logical thinking is argument based on reason as opposed to feelings where someone makes use of his/her brains and mind to argue and provide knowledge on any particular issue.

Principles of Logic:

1.     Law of identity: This states that whatever is, is, or A is A. This Principle is actually saying that: If a proposition is true, then it is true.

2.     Law of contradiction: This states that nothing can both be and not be, or nothing can be both A and not A. This Proposition is actually saying; No Proposition is both true and false.

Law of excluded middle: This states that everything must either be or not be, or everything is either A or not A. This Proposition is actually saying that: A Proposition is either true or false.