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added preliminary def of krullDimGE

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GTBarkley 2023-06-11 12:33:18 +00:00
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@ -36,4 +36,7 @@ lemma twoHeights : s ≠ ∅ → (some (Set.chainHeight s) : WithBot (WithTop
sorry
-- norm_cast
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def krullDimGE (R : Type _) [CommRing R] (n : ℕ) :=
∃ c : List (PrimeSpectrum R), c.Chain' (· < ·) ∧ c.length = n + 1