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Theorem cnrmnrm 23307
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 2735 . . 3 𝐽 = 𝐽
21restid 17355 . 2 (𝐽 ∈ CNrm → (𝐽t 𝐽) = 𝐽)
3 uniexg 7685 . . 3 (𝐽 ∈ CNrm → 𝐽 ∈ V)
4 cnrmi 23306 . . 3 ((𝐽 ∈ CNrm ∧ 𝐽 ∈ V) → (𝐽t 𝐽) ∈ Nrm)
53, 4mpdan 688 . 2 (𝐽 ∈ CNrm → (𝐽t 𝐽) ∈ Nrm)
62, 5eqeltrrd 2836 1 (𝐽 ∈ CNrm → 𝐽 ∈ Nrm)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2114  Vcvv 3439   cuni 4862  (class class class)co 7358  t crest 17342  Nrmcnrm 23256  CNrmccnrm 23257
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2183  ax-ext 2707  ax-rep 5223  ax-sep 5240  ax-nul 5250  ax-pow 5309  ax-pr 5376  ax-un 7680
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2538  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2810  df-nfc 2884  df-ne 2932  df-ral 3051  df-rex 3060  df-reu 3350  df-rab 3399  df-v 3441  df-sbc 3740  df-csb 3849  df-dif 3903  df-un 3905  df-in 3907  df-ss 3917  df-nul 4285  df-if 4479  df-pw 4555  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4863  df-iun 4947  df-br 5098  df-opab 5160  df-mpt 5179  df-id 5518  df-xp 5629  df-rel 5630  df-cnv 5631  df-co 5632  df-dm 5633  df-rn 5634  df-res 5635  df-ima 5636  df-iota 6447  df-fun 6493  df-fn 6494  df-f 6495  df-f1 6496  df-fo 6497  df-f1o 6498  df-fv 6499  df-ov 7361  df-oprab 7362  df-mpo 7363  df-rest 17344  df-cnrm 23264
This theorem is referenced by: (None)
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