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@ggrandi ggrandi commented Feb 2, 2026

Adds some scaffolding for proving Real.equivR_ordered_ring.

The helpers build up to proving:

theorem Real.equivR_eq' {a: ℕ → ℚ} (ha: Sequence.IsCauchy a) 
  : (LIM a).equivR = Real.mk ha.CauSeq := by sorry

So that equivR_ordered can be solved using the chapter 5 cauchy sequences and theorems about _root_.Real.mk

@teorth teorth merged commit 1d4e8c3 into teorth:main Feb 2, 2026
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@ggrandi ggrandi deleted the 5-epilogue-scaffolding branch February 2, 2026 21:53
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2 participants