What does "logical fallacy" mean?

A fallacy; a clearly defined error in reasoning used to support or refute an argument, excluding simple unintended mistakes.

Logical fallacy

Common synonyms include: argumentation error, claptrap, deceptive, fallacious, fallacious reasoning, fallacy.

noun

noun ·Uncommon ·Advanced level

Noun

1
A fallacy; a clearly defined error in reasoning used to support or refute an argument, excluding simple unintended mistakes.
2
a fallacy in logical argumentation wordnet
3
A formal fallacy.
"A valid syllogism contains three terms; with four it commits the logical fallacy known as quaternio terminorum."

"A valid syllogism contains three terms; with four it commits the logical fallacy known as quaternio terminorum."