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Definition of Exclusive or
1. Noun. (context: logic computing) Exclusive disjunction: the use of (term or) to indicate that of two predicates, one is true and one is false (without specifying which is which); (non-gloss definition contrasted with inclusive or, which does not imply that one must be false.) ¹
2. Noun. (context: logic computing more generally) Exclusive disjunction: the use of (term or) to indicate that of two or more predicates, an odd number are true (without specifying which or how many); (non-gloss definition contrasted with inclusive or, which indicates only that one or more is true.) ¹
3. Noun. (context: logic computing) An exclusive disjunction; the result of applying the above-described exclusive or to two or more predicates; (non-gloss definition contrasted with an inclusive or, which is the result of applying an inclusive or.) ¹
¹ Source: wiktionary.com