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Sayantan Santra 2023-06-15 19:34:20 -07:00
parent 01bce563a5
commit e9fbb1a521
Signed by: SinTan1729
GPG key ID: EB3E68BFBA25C85F
1 changed files with 2 additions and 2 deletions
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CommAlg/krull.lean
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@ -278,7 +278,7 @@ lemma domain_dim_zero.isField {D: Type _} [CommRing D] [IsDomain D] (h: krullDim
have : {J | J < P'}.Nonempty := Set.nonempty_of_mem this
unfold height
rw [←Set.one_le_chainHeight_iff] at this
exact not_le_of_gt (Iff.mp ENat.one_le_iff_pos this)
exact not_le_of_gt (ENat.one_le_iff_pos.mp this)
have nonpos_height : height P' ≤ 0 := by
have := height_le_krullDim P'
rw [h] at this