Logic

• Logic is derived from ‘Logos’ which meaning ‘Thinking’.

• It is a systematic analysis of out thinking methodology & its product "thought".

• A unit of thought is judgement.

• When judgement is express in a language it becomes a sentence.

• All sentences are converted into a logical structure.

• Only in these structures the linguistic expressions are considered to be true, false or doubtful.

• Logic is treated as a normative & not as a positive science.

• In positive science the subject matter as studied 'as they are’.

• Logic, ethics & aesthetics are the normative sciences, whose subject matter are studied from the ‘ought to be’ point of view.

• Logic insists on how one ought to think rather than how one is actually thinking.