Database
SUPPLEMENTARY MATERIAL (USERS' MATHBOXES)
Mathbox for Thierry Arnoux
Algebra
Signum in an ordered monoid
csgns
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df-sgns
Metamath Proof Explorer
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Structured
Syntax definition
csgns
Description:
Extend class notation to include the Signum function.
Ref
Expression
Assertion
csgns
class sgns