Usage Note
Lógica functions both as the academic discipline (formal logic) and as everyday reasoning ('that makes sense'). The adjective is lógico/lógica, and lógicamente means 'logically' or, colloquially, 'obviously'. The phrase no tiene lógica ('it makes no sense') is very common in casual speech across all Spanish-speaking countries.
Examples
"Su argumento no tiene ninguna lógica."
Natural Translation
His argument has no logic at all.

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