tautology
/toːˈtɔl.ə.d͡ʒi/noun
High School
1
Redundant use of words, a pleonasm, an unnecessary and tedious repetition.
2
An expression that features tautology.
3
A statement that is true for all truth values of its propositional variables.
4
A statement that is true for all truth values of its Boolean atoms.
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