Logic Flashcards
Logic
the art and science of reasoning well
Formal Logic
deals with the proper modes of reasoning
Informal Logic
deals with operations of thinking that are indirectly related to reasoning
Deduction
is reason with certainty from premises to conclusions
Induction
is reason with probability from examples of experience to general rules
Categorical Logic
deals with syllogism
Propositional Logic
connects entire propositions together in an argument
Syllogism
a type of deductive argument in which the concussion connects one category with another
Term
a concept that is expressed precisely in words
Informal Fallacies
defects found in the content of the argument
Statement
there is no ambiguity it can be true or false
Ambiguous
a word that has more than one meaning
Vague
a word whose extent is unclear
Lexical Definition
a definition that shows relationship or reduces ambiguity by providing a single established meaning of the term
Precising Definition
seeks to make clear what was formerly vague or fuzzy