/ 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.