Meaning of LOGIC in English

LOGIC

/ ˈlɒdʒɪk; NAmE ˈlɑːdʒɪk/ noun

1.

[ U ] a way of thinking or explaining sth :

I fail to see the logic behind his argument.

The two parts of the plan were governed by the same logic.

2.

[ U , sing. ] sensible reasons for doing sth :

Linking the proposals in a single package did have a certain logic.

a strategy based on sound commercial logic

There is no logic to / in any of their claims.

3.

[ U ] ( philosophy ) the science of thinking about or explaining the reason for sth using formal methods :

the rules of logic

4.

[ U ] ( computing ) a system or set of principles used in preparing a computer to perform a particular task

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WORD ORIGIN

late Middle English : via Old French logique and late Latin logica from Greek logikē (tekhnē) (art) of reason, from logos word, reason.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.