Alias: ~. Infix similarity operator. x
y is by default interpreted as Tilde[x,y]. Used in mathematics for many notions of similarity or equivalence. Used in physical science to indicate approximate equality. Occasionally used in mathematics for notions of difference. Occasionally used in prefix form to indicate complement or negation. Not the same as \[RawTilde]. See The Mathematica Book: Section 1.10.8, Section 3.10.4. See also: \[NotTilde], \[VerticalTilde], \[Not].
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