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Pronunciation varies by accent · noun
(algebra, logic) The subset of all elements of a semigroup that commute with the elements of a given subset.
The basic mathematical entity to be used here in elucidating the different senses of superselection rules is a von Neumann algebra #123;#92;mathfrak#123;M
Use commutant when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Commutant means (algebra, logic) The subset of all elements of a semigroup that commute with the elements of a given subset.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
The basic mathematical entity to be used here in elucidating the different senses of superselection rules is a von Neumann algebra #123;#92;mathfrak#123;M
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