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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 6054 | . 2 ⊢ ( I ↾ 𝑋) = (𝑥 ∈ 𝑋 ↦ 𝑥) | |
| 2 | cnmptid.j | . . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
| 3 | idcn 23383 | . . 3 ⊢ (𝐽 ∈ (TopOn‘𝑋) → ( I ↾ 𝑋) ∈ (𝐽 Cn 𝐽)) | |
| 4 | 2, 3 | syl 18 | . 2 ⊢ (𝜑 → ( I ↾ 𝑋) ∈ (𝐽 Cn 𝐽)) |
| 5 | 1, 4 | eqeltrrid 2874 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝑥) ∈ (𝐽 Cn 𝐽)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2149 ↦ cmpt 5196 I cid 5556 ↾ cres 5664 ‘cfv 6537 (class class class)co 7411 TopOnctopon 23036 Cn ccn 23350 |
| 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-sep 5261 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-rab 3424 df-v 3465 df-sbc 3754 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-opab 5178 df-mpt 5197 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-map 8826 df-top 23020 df-topon 23037 df-cn 23353 |
| This theorem is referenced by: xkoinjcn 23813 txconn 23815 imasnopn 23816 imasncld 23817 imasncls 23818 pt1hmeo 23932 istgp2 24217 tmdmulg 24218 tmdlactcn 24228 clsnsg 24236 tgpt0 24245 tlmtgp 24322 nmcn 24971 expcn 25000 divccn 25001 cncfmptid 25041 cdivcncf 25049 iirevcn 25058 iihalf1cn 25060 iihalf2cn 25062 icchmeo 25069 evth2 25088 pcocn 25145 pcopt 25150 pcopt2 25151 pcoass 25152 csscld 25377 clsocv 25378 dvcnvlem 26104 resqrtcn 26880 sqrtcn 26881 efrlim 27100 ipasslem7 31129 occllem 31596 hmopidmchi 32444 rmulccn 34263 cxpcncf1 34927 cvxpconn 35633 cvmlift2lem2 35695 cvmlift2lem3 35696 cvmliftphtlem 35708 knoppcnlem10 36980 cxpcncf2 46505 |
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