commutativityn.

/ˌkɒmjuːtəˈtɪvɪti/

Etymology: < commutative adj. + -ity suffix.

The ability of two or more quantities to commute (see commute v. 7).

ΘΚΠ

the world > relative properties > number > arithmetic or algebraic operations > transformation > [noun] > property of

invariance1878

invariancy1895

commutativity1929

commutativeness1949

homotopy1956

1929 E. U. Condon & P. M. Morse Quantum Mech. i. 14 The non-commutativity of the operation which passes for p in the wave equation and its associated q.

1947 H. Reichenbach Elem. Symbolic Logic 149 The principle of commutativity of all-operators.

1964 Cambr. Rev. 24 Oct. 51/2 The commutativity (or anticommutativity) of the field operators at space-like distances.

This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2018).

单词	commutativity
释义	commutativityn. /ˌkɒmjuːtəˈtɪvɪti/ Etymology: < commutative adj. + -ity suffix. The ability of two or more quantities to commute (see commute v. 7). ΘΚΠ the world > relative properties > number > arithmetic or algebraic operations > transformation > [noun] > property of invariance1878 invariancy1895 commutativity1929 commutativeness1949 homotopy1956 1929 E. U. Condon & P. M. Morse Quantum Mech. i. 14 The non-commutativity of the operation which passes for p in the wave equation and its associated q. 1947 H. Reichenbach Elem. Symbolic Logic 149 The principle of commutativity of all-operators. 1964 Cambr. Rev. 24 Oct. 51/2 The commutativity (or anticommutativity) of the field operators at space-like distances. This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2018). < n.1929
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