Theorems · Theorem · commutative algebra
HahnSeries.mem_support
∀ {Γ : Type u_1} {R : Type u_3} [inst : PartialOrder Γ] [inst_1 : Zero R] (x : HahnSeries Γ R) (a : Γ),
a ∈ x.support ↔ x.coeff a ≠ 0- Defined in
- Mathlib.RingTheory.HahnSeries.Basic
- Cited by
- 10 results in Mathlib
- Foundations
- Depth 6 from the axioms · uses no axioms
- Assumes
- PartialOrderZero
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites5
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- Setstatement · cited by 53,352
- PartialOrderstatement and proof · cited by 6,410
- HahnSeriesstatement and proof · cited by 528
- HahnSeries.coeffstatement · cited by 235
- HahnSeries.supportstatement · cited by 84
Cited by10
Results whose statement or proof uses this declaration.
- HahnSeries.embDomain_coeffproof · cited by 10
- HahnSeries.coeff_eq_zero_of_lt_orderTopproof · cited by 9
- HahnSeries.order_le_of_coeff_ne_zeroproof · cited by 6
- HahnSeries.orderTop_le_of_coeff_ne_zeroproof · cited by 4
- HahnSeries.coeff_eq_zero_of_lt_orderproof · cited by 3
- HahnSeries.support_embDomain_subsetproof · cited by 2
- HahnSeries.SummableFamily.isPWO_iUnion_support_prod_smulproof · cited by 1
- HahnSeries.SummableFamily.le_hsum_support_memproof · cited by 1
- HahnSeries.SummableFamily.support_hsum_subsetproof · cited by 1
- HahnSeries.embDomain_mulproof · cited by 0