Logic

/ˈlɒdʒɪk/

Meaning & Definition

noun
The science of reasoning, demonstration, and inference.
In her lecture on logic, she explained how deductive reasoning works.
A system or set of principles for reasoning.
The logic of his argument was fundamentally flawed.
Reasoning conducted or assessed according to strict principles of validity.
The logic behind her decision was based on thorough analysis.
A particular mode of reasoning or a set of reasoning principles.
Their logic in solving the puzzle was impressive.
The use of reason and rationality in thought processes.
He approached the problem with a clear logic that helped him find a solution.

Etymology

From the Greek word 'logikós', meaning 'pertaining to reason'.

Common Phrases and Expressions

logic board
A circuit board that contains the main components of a computer's logic system.
fallacy of logic
An error in reasoning that renders an argument invalid.
apply logic
To use rational thinking to solve a problem.

Related Words

rationality
The quality of being based on or in accordance with reason or logic.
analytical
Relating to or using analysis or logical reasoning.
syllogism
A form of reasoning in which a conclusion is drawn from two given or assumed propositions.

Slang Meanings

To be logical or sensible.
Get with the program, man, use some logic!
A term used to refer to someone who is overly analytical.
He's such a logic nerd!