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Theorems · Theorem · logic and foundations

Ordinal.isSuccLimit_of_mem_frontier

Deprecated since 2026-01-20Use SuccOrder.isSuccLimit_of_mem_frontier instead.

∀ {s : Set Ordinal.{u}} {a : Ordinal.{u}}, a ∈ frontier s → Order.IsSuccLimit a
Defined in
Mathlib.SetTheory.Ordinal.Topology
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Foundations
Depth 92 from the axioms · uses propext, Classical.choice, Quot.sound
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Set · cited by 53352SetOrdinal · cited by 1688OrdinalOrder.IsSuccLimit · cited by 255Order.IsSuccLimitfrontier · cited by 214frontierSuccOrder.isSuccLimit_of_mem_frontier · cited by 1SuccOrder.isSuccLimit_of_…Ordinal.isSuccLimit_of_mem_fr…CITED BYCITES

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