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Theorem cnrmnrm 22540
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 2733 . . 3 𝐽 = 𝐽
21restid 17172 . 2 (𝐽 ∈ CNrm → (𝐽t 𝐽) = 𝐽)
3 uniexg 7613 . . 3 (𝐽 ∈ CNrm → 𝐽 ∈ V)
4 cnrmi 22539 . . 3 ((𝐽 ∈ CNrm ∧ 𝐽 ∈ V) → (𝐽t 𝐽) ∈ Nrm)
53, 4mpdan 683 . 2 (𝐽 ∈ CNrm → (𝐽t 𝐽) ∈ Nrm)
62, 5eqeltrrd 2835 1 (𝐽 ∈ CNrm → 𝐽 ∈ Nrm)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2101  Vcvv 3434   cuni 4841  (class class class)co 7295  t crest 17159  Nrmcnrm 22489  CNrmccnrm 22490
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1793  ax-4 1807  ax-5 1909  ax-6 1967  ax-7 2007  ax-8 2103  ax-9 2111  ax-10 2132  ax-11 2149  ax-12 2166  ax-ext 2704  ax-rep 5212  ax-sep 5226  ax-nul 5233  ax-pow 5291  ax-pr 5355  ax-un 7608
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1540  df-fal 1550  df-ex 1778  df-nf 1782  df-sb 2063  df-mo 2535  df-eu 2564  df-clab 2711  df-cleq 2725  df-clel 2811  df-nfc 2884  df-ne 2939  df-ral 3060  df-rex 3069  df-reu 3223  df-rab 3224  df-v 3436  df-sbc 3719  df-csb 3835  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4260  df-if 4463  df-pw 4538  df-sn 4565  df-pr 4567  df-op 4571  df-uni 4842  df-iun 4929  df-br 5078  df-opab 5140  df-mpt 5161  df-id 5491  df-xp 5597  df-rel 5598  df-cnv 5599  df-co 5600  df-dm 5601  df-rn 5602  df-res 5603  df-ima 5604  df-iota 6399  df-fun 6449  df-fn 6450  df-f 6451  df-f1 6452  df-fo 6453  df-f1o 6454  df-fv 6455  df-ov 7298  df-oprab 7299  df-mpo 7300  df-rest 17161  df-cnrm 22497
This theorem is referenced by: (None)
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