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Theorem llycmpkgen 23462
Description: A locally compact space is compactly generated. (Contributed by Mario Carneiro, 21-Mar-2015.)
Assertion
Ref Expression
llycmpkgen (𝐽 ∈ 𝑛-Locally Comp → 𝐽 ∈ ran 𝑘Gen)

Proof of Theorem llycmpkgen
Dummy variables 𝑘 𝑥 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2731 . 2 𝐽 = 𝐽
2 nllytop 23383 . 2 (𝐽 ∈ 𝑛-Locally Comp → 𝐽 ∈ Top)
3 simpl 482 . . . 4 ((𝐽 ∈ 𝑛-Locally Comp ∧ 𝑥 𝐽) → 𝐽 ∈ 𝑛-Locally Comp)
41topopn 22816 . . . . . 6 (𝐽 ∈ Top → 𝐽𝐽)
52, 4syl 17 . . . . 5 (𝐽 ∈ 𝑛-Locally Comp → 𝐽𝐽)
65adantr 480 . . . 4 ((𝐽 ∈ 𝑛-Locally Comp ∧ 𝑥 𝐽) → 𝐽𝐽)
7 simpr 484 . . . 4 ((𝐽 ∈ 𝑛-Locally Comp ∧ 𝑥 𝐽) → 𝑥 𝐽)
8 nllyi 23385 . . . 4 ((𝐽 ∈ 𝑛-Locally Comp ∧ 𝐽𝐽𝑥 𝐽) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝑘 𝐽 ∧ (𝐽t 𝑘) ∈ Comp))
93, 6, 7, 8syl3anc 1373 . . 3 ((𝐽 ∈ 𝑛-Locally Comp ∧ 𝑥 𝐽) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝑘 𝐽 ∧ (𝐽t 𝑘) ∈ Comp))
10 simpr 484 . . . 4 ((𝑘 𝐽 ∧ (𝐽t 𝑘) ∈ Comp) → (𝐽t 𝑘) ∈ Comp)
1110reximi 3070 . . 3 (∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝑘 𝐽 ∧ (𝐽t 𝑘) ∈ Comp) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝐽t 𝑘) ∈ Comp)
129, 11syl 17 . 2 ((𝐽 ∈ 𝑛-Locally Comp ∧ 𝑥 𝐽) → ∃𝑘 ∈ ((nei‘𝐽)‘{𝑥})(𝐽t 𝑘) ∈ Comp)
131, 2, 12llycmpkgen2 23460 1 (𝐽 ∈ 𝑛-Locally Comp → 𝐽 ∈ ran 𝑘Gen)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  wcel 2111  wrex 3056  wss 3897  {csn 4571   cuni 4854  ran crn 5612  cfv 6476  (class class class)co 7341  t crest 17319  Topctop 22803  neicnei 23007  Compccmp 23296  𝑛-Locally cnlly 23375  𝑘Genckgen 23443
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2113  ax-9 2121  ax-10 2144  ax-11 2160  ax-12 2180  ax-ext 2703  ax-rep 5212  ax-sep 5229  ax-nul 5239  ax-pow 5298  ax-pr 5365  ax-un 7663
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2535  df-eu 2564  df-clab 2710  df-cleq 2723  df-clel 2806  df-nfc 2881  df-ne 2929  df-ral 3048  df-rex 3057  df-reu 3347  df-rab 3396  df-v 3438  df-sbc 3737  df-csb 3846  df-dif 3900  df-un 3902  df-in 3904  df-ss 3914  df-pss 3917  df-nul 4279  df-if 4471  df-pw 4547  df-sn 4572  df-pr 4574  df-op 4578  df-uni 4855  df-int 4893  df-iun 4938  df-br 5087  df-opab 5149  df-mpt 5168  df-tr 5194  df-id 5506  df-eprel 5511  df-po 5519  df-so 5520  df-fr 5564  df-we 5566  df-xp 5617  df-rel 5618  df-cnv 5619  df-co 5620  df-dm 5621  df-rn 5622  df-res 5623  df-ima 5624  df-ord 6304  df-on 6305  df-lim 6306  df-suc 6307  df-iota 6432  df-fun 6478  df-fn 6479  df-f 6480  df-f1 6481  df-fo 6482  df-f1o 6483  df-fv 6484  df-ov 7344  df-oprab 7345  df-mpo 7346  df-om 7792  df-1st 7916  df-2nd 7917  df-en 8865  df-fin 8868  df-fi 9290  df-rest 17321  df-topgen 17342  df-top 22804  df-topon 22821  df-bases 22856  df-ntr 22930  df-nei 23008  df-cmp 23297  df-nlly 23377  df-kgen 23444
This theorem is referenced by:  txkgen  23562
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