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Theorem cnrmnrm 23487
Description: A completely normal space is normal. (Contributed by Mario Carneiro, 26-Aug-2015.)
Assertion
Ref Expression
cnrmnrm (𝐽 ∈ CNrm → 𝐽 ∈ Nrm)

Proof of Theorem cnrmnrm
StepHypRef Expression
1 eqid 2769 . . 3 𝐽 = 𝐽
21restid 17486 . 2 (𝐽 ∈ CNrm → (𝐽t 𝐽) = 𝐽)
3 uniexg 7739 . . 3 (𝐽 ∈ CNrm → 𝐽 ∈ V)
4 cnrmi 23486 . . 3 ((𝐽 ∈ CNrm ∧ 𝐽 ∈ V) → (𝐽t 𝐽) ∈ Nrm)
53, 4mpdan 699 . 2 (𝐽 ∈ CNrm → (𝐽t 𝐽) ∈ Nrm)
62, 5eqeltrrd 2870 1 (𝐽 ∈ CNrm → 𝐽 ∈ Nrm)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2149  Vcvv 3461   cuni 4874  (class class class)co 7411  t crest 17473  Nrmcnrm 23436  CNrmccnrm 23437
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5240  ax-sep 5259  ax-nul 5271  ax-pow 5337  ax-pr 5405  ax-un 7733
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-ral 3086  df-rex 3096  df-reu 3376  df-rab 3423  df-v 3463  df-sbc 3752  df-csb 3860  df-dif 3914  df-un 3916  df-in 3918  df-ss 3928  df-nul 4293  df-if 4491  df-pw 4567  df-sn 4593  df-pr 4595  df-op 4599  df-uni 4875  df-iun 4960  df-br 5112  df-opab 5176  df-mpt 5195  df-id 5557  df-xp 5668  df-rel 5669  df-cnv 5670  df-co 5671  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-ov 7414  df-oprab 7415  df-mpo 7416  df-rest 17475  df-cnrm 23444
This theorem is referenced by: (None)
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