Introduction to Logic

Introduction to LogicSubject Matter of Logic The word logic comes from Greek Word logos ThoughtsWords

So the logic study thoughts : and because thought is always expressed in words, logic is also concerned with words as the expression of thoughtDefinition of LogicScience of the laws of valid thoughtScienceLawValid ThoughtDefinition of LogicScience Science means knowledgeAll science is knowledge but all knowledge is not science Science is not a ordinary knowledge ; it is systematic, accurate and complete knowledge of some subject-matter. Psychologist ------ Human BodyBotanist -------- Plants