logical validity
[ˈlɒdʒɪkəl vəˈlɪdɪti]
nounfemininepl: logical validities
validade lógica
1. The property of an argument or proposition where the conclusion necessarily follows from the premises according to the rules of logic
The logical validity of the syllogism ensures that if both premises are true, the conclusion must be true.
A validade lógica do silogismo garante que se ambas as premissas são verdadeiras, a conclusão deve ser verdadeira.
2. In formal logic, the quality of a deductive argument that preserves truth from premises to conclusion
Philosophers debate the logical validity of various metaphysical arguments.
Filósofos debatem a validade lógica de vários argumentos metafísicos.
3. The correctness of reasoning structure, independent of whether the premises are actually true
An argument can have logical validity even if its premises are false.
Um argumento pode ter validade lógica mesmo que suas premissas sejam falsas.
This is primarily an academic and philosophical term used in both English-speaking and Portuguese-speaking academic communities. It is central to logic courses, philosophy departments, and formal reasoning instruction. The concept is formally taught in universities and is rarely used in casual conversation. In Brazil and Portugal, the term 'validade lógica' is standardized in philosophical and logical discourse.
Related Idioms & Phrases
the logical validity of an argument holds
to establish logical validity
to question the logical validity of something
logical validity is preserved through valid inference
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