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Logic

Logic is primarily about consistency - but not all types of consistency. For example if a man supports Arsenal one day and supports Spurs the next then he is fickle, but not necessarily illogical. The type of consistency which concerns logicians is not loyalty or justice or sincerity but compatibility of beliefs. Logic, therefore, involves studying the situations in which a sentence is true or valid and subsequently the rules which determine the validity or otherwise of a given argument.

As another example , English Law has been known to decide questions of reasonableness by appealing to what the man on the Clapham omnibus would have thought if he had been a ... Subjunctive conditionals appear also in moral reasoning .

History of Logic

First published in 1977. Routledge is an imprint of Taylor & Francis, an informa company.

... which otherwise seem to belong to undefined philosophical fields , such as , for instance , legal logic . ... This reasoning does not aim at the theoretical structure of ratiocination , but at its practice and this is liable to ...