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MvPowerSeries.ne_zero_iff_exists_coeff_ne_zero
Modification history
2024-11-12 19:15
Mathlib/RingTheory/MvPowerSeries/Basic.lean
feat(MvPowerSeries.Order): order of multivariate power series (#14983)
Added
MvPowerSeries.ne_zero_iff_exists_coeff_ne_zero
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