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# Index – B

base_extend() (sage.rings.laurent_series_ring.LaurentSeriesRing_generic method) (sage.rings.power_series_ring.PowerSeriesRing_generic method) (sage.rings.power_series_ring_element.PowerSeries method) base_ring() (sage.rings.power_series_ring_element.PowerSeries method) | bigoh() (sage.rings.multi_power_series_ring.MPowerSeriesRing_generic method)

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