Logic
The science and art of reasoning well.
What is logic?
Drawing proper conclusions from other information.
What is reasoning?
A dictionary definition that shows relationships or reduces ambiguity by providing a single established meaning of a term.
What is a lexical definition?
A term that is more specific, narrow, or concrete than the original term and is included by it?
What is species?
Defining a term with the same meaning as the one being defined.
What is defining by synonym?
A branch of formal, deductive logic in which the basic unit of thought is the proposition.
What is propositional logic?
If a statement is true, then it is true.
What is the law of identity?
A concept that can be expressed precisely.
What is a term?
A term that is more general, broad, or abstract than the original term and includes it.
What is genus?
Defining a term by giving several examples including the species of the term.
What is defining by example?
Deals with operations of thinking that are indirectly related to reasoning.
What is informal logic?
A statement cannot be both true and false.
What is the law of non-contradiction?
If a word has more than one possible meaning.
What is ambiguous?
A chart in which terms can be placed to clearly show the relationships between them.
What is genus & species hierarchy?
Defining a term by naming the genus and then adding descriptive words that distinguish it from all other species under that genus.
What is defining by genus and difference?
Deals with the syllogism, a type of deductive argument in which the conclusion connects one category (or term) with another.
What is categorical logic?
Reasoning with certainty from premises to conclusions.
What is deduction?
A word whose extent or meaning is unclear.
What is vague?
Species list in a hierarchy chart that includes all existing types.
What is exhaustive?
The sum of all the individual objects described by a term.
What is extension?
What is formal logic?
Any statement is either true or false.
What is the law of the excluded middle?
When a new word is invented or an existing word is used in a new way
What is a stimulative definition?
Species in a hierarchy chart that do not overlap.
What is mutually exclusive?
The sum of all the common attributes denoted by the term
What is intension?