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 KASH3 Reference Manual
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Function

IsMinusOne ( elt-ord^pad x ) -> elt-alg^boo

Description

Determine whether `x' is the additive inverse element of the multiplicative neutral element and return `TRUE' in this case, `FALSE' otherwise.

Examples

x_z11 := pAdicRing(11,121);; IsMinusOne(One(x_z11)); IsMinusOne(-One(x_z11));
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