PowerSeries.order_mul_ge

∀ {R : Type u_1} [inst : Semiring R] (φ ψ : PowerSeries R), φ.order + ψ.order ≤ (φ * ψ).order

Alias of PowerSeries.le_order_mul. The order of the product of two formal power series is at least the sum of their orders.

Defined in: Mathlib.RingTheory.PowerSeries.Order
Cited by: 2 results in Mathlib
Foundations: Depth 90 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: Semiring

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