idempotencyn.

Brit.

/ˌɪdɛmˈpəʊtnsi/,

/ˌʌɪdɛmˈpəʊtnsi/, U.S.

/ˌaɪdɛmˈpoʊtnsi/,

/ˌidɛmˈpoʊtnsi/

Origin: Formed within English, by compounding. Etymons: idempotent adj., potency n.

Etymology: < idem- (in idempotent adj.) + potency n. Compare earlier idempotence n.

Mathematics, Logic, and Computing.

= idempotence n.

ΘΚΠ

the world > relative properties > number > algebra > [noun] > algebraic property

associativeness1878

symmetry1888

associativity1926

idempotence1934

distributivity1940

idempotency1940

1940 Mind 49 461 The truth is that Eddington, in spite of all that he says about getting all the mathematics he wants out of the idempotency of the J symbols, employs them in accordance with the laws of ordinary algebra whenever he thinks fit.

1957 P. Suppes Introd. to Logic ix. 205 Equations (9) and (10) express what is usually called the idempotency of union and intersection.

1968 New Scientist 16 May 339/1 Idempotency..occurs if an operation produces no change in the number or set on which it operates.

2008 H. T. Vieira et al. in S. Drossopoulou Programming Langs. & Syst. 257 The idempotency of ⊗ implies that the invertibility property holds.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	idempotency
释义	idempotencyn. Brit. /ˌɪdɛmˈpəʊtnsi/, /ˌʌɪdɛmˈpəʊtnsi/, U.S. /ˌaɪdɛmˈpoʊtnsi/, /ˌidɛmˈpoʊtnsi/ Origin: Formed within English, by compounding. Etymons: idempotent adj., potency n. Etymology: < idem- (in idempotent adj.) + potency n. Compare earlier idempotence n. Mathematics, Logic, and Computing. = idempotence n. ΘΚΠ the world > relative properties > number > algebra > [noun] > algebraic property associativeness1878 symmetry1888 associativity1926 idempotence1934 distributivity1940 idempotency1940 1940 Mind 49 461 The truth is that Eddington, in spite of all that he says about getting all the mathematics he wants out of the idempotency of the J symbols, employs them in accordance with the laws of ordinary algebra whenever he thinks fit. 1957 P. Suppes Introd. to Logic ix. 205 Equations (9) and (10) express what is usually called the idempotency of union and intersection. 1968 New Scientist 16 May 339/1 Idempotency..occurs if an operation produces no change in the number or set on which it operates. 2008 H. T. Vieira et al. in S. Drossopoulou Programming Langs. & Syst. 257 The idempotency of ⊗ implies that the invertibility property holds. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < n.1940
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