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Mirrors > Home > MPE Home > Th. List > cnmptid | Structured version Visualization version GIF version |
Description: The identity function is continuous. (Contributed by Mario Carneiro, 5-May-2014.) (Revised by Mario Carneiro, 22-Aug-2015.) |
Ref | Expression |
---|---|
cnmptid.j | ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) |
Ref | Expression |
---|---|
cnmptid | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝑥) ∈ (𝐽 Cn 𝐽)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mptresid 6009 | . 2 ⊢ ( I ↾ 𝑋) = (𝑥 ∈ 𝑋 ↦ 𝑥) | |
2 | cnmptid.j | . . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
3 | idcn 22645 | . . 3 ⊢ (𝐽 ∈ (TopOn‘𝑋) → ( I ↾ 𝑋) ∈ (𝐽 Cn 𝐽)) | |
4 | 2, 3 | syl 17 | . 2 ⊢ (𝜑 → ( I ↾ 𝑋) ∈ (𝐽 Cn 𝐽)) |
5 | 1, 4 | eqeltrrid 2837 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝑥) ∈ (𝐽 Cn 𝐽)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2106 ↦ cmpt 5193 I cid 5535 ↾ cres 5640 ‘cfv 6501 (class class class)co 7362 TopOnctopon 22296 Cn ccn 22612 |
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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2702 ax-sep 5261 ax-nul 5268 ax-pow 5325 ax-pr 5389 ax-un 7677 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2533 df-eu 2562 df-clab 2709 df-cleq 2723 df-clel 2809 df-nfc 2884 df-ne 2940 df-ral 3061 df-rex 3070 df-rab 3406 df-v 3448 df-sbc 3743 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4288 df-if 4492 df-pw 4567 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4871 df-br 5111 df-opab 5173 df-mpt 5194 df-id 5536 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-iota 6453 df-fun 6503 df-fn 6504 df-f 6505 df-f1 6506 df-fo 6507 df-f1o 6508 df-fv 6509 df-ov 7365 df-oprab 7366 df-mpo 7367 df-map 8774 df-top 22280 df-topon 22297 df-cn 22615 |
This theorem is referenced by: xkoinjcn 23075 txconn 23077 imasnopn 23078 imasncld 23079 imasncls 23080 pt1hmeo 23194 istgp2 23479 tmdmulg 23480 tmdlactcn 23490 clsnsg 23498 tgpt0 23507 tlmtgp 23584 nmcn 24244 expcn 24272 divccn 24273 cncfmptid 24313 cdivcncf 24321 iirevcn 24330 iihalf1cn 24332 iihalf2cn 24334 icchmeo 24341 evth2 24360 pcocn 24417 pcopt 24422 pcopt2 24423 pcoass 24424 csscld 24650 clsocv 24651 dvcnvlem 25377 resqrtcn 26139 sqrtcn 26140 efrlim 26356 ipasslem7 29841 occllem 30308 hmopidmchi 31156 rmulccn 32598 cxpcncf1 33297 cvxpconn 33923 cvmlift2lem2 33985 cvmlift2lem3 33986 cvmliftphtlem 33998 knoppcnlem10 35041 cxpcncf2 44260 |
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