x - ySubtract two Python objects.
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If one of the arguments is a Macaulay2 object, then it is first converted to a Python object before subtracting.
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It may also be used as a unary method.
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The source of this document is in /build/macaulay2-88fgJW/macaulay2-1.25.11+ds/M2/Macaulay2/packages/Python/doc/arithmetic.m2:119:0.