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CurrentRing -- an option to specify that a certain ring is used

Description

CurrentRing is an option used in various functions to specify a ring to work with.

Functions with optional argument named CurrentRing :

FPureModule(...,CurrentRing=>...) -- see FPureModule -- compute the submodule of the canonical module stable under the image of the trace of Frobenius
testModule(...,CurrentRing=>...) -- see testModule -- find the parameter test module of a reduced ring

For the programmer

The object CurrentRing is a symbol.