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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 6055 | . 2 ⊢ ( I ↾ 𝑋) = (𝑥 ∈ 𝑋 ↦ 𝑥) | |
| 2 | cnmptid.j | . . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
| 3 | idcn 23466 | . . 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 2870 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝑥) ∈ (𝐽 Cn 𝐽)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2146 ↦ cmpt 5194 I cid 5557 ↾ cres 5665 ‘cfv 6540 (class class class)co 7419 TopOnctopon 23119 Cn ccn 23433 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-sbc 3747 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-ov 7422 df-oprab 7423 df-mpo 7424 df-map 8832 df-top 23103 df-topon 23120 df-cn 23436 |
| This theorem is used by: xkoinjcn 23897 txconn 23899 imasnopn 23900 imasncld 23901 imasncls 23902 pt1hmeo 24016 istgp2 24301 tmdmulg 24302 tmdlactcn 24312 clsnsg 24320 tgpt0 24329 tlmtgp 24406 nmcn 25055 expcn 25084 divccn 25085 cncfmptid 25125 cdivcncf 25133 iirevcn 25142 iihalf1cn 25144 iihalf2cn 25146 icchmeo 25153 evth2 25172 pcocn 25229 pcopt 25234 pcopt2 25235 pcoass 25236 csscld 25461 clsocv 25462 dvcnvlem 26188 resqrtcn 26967 sqrtcn 26968 efrlim 27187 ipasslem7 31261 occllem 31728 hmopidmchi 32576 rmulccn 34384 cxpcncf1 35049 cvxpconn 35773 cvmlift2lem2 35835 cvmlift2lem3 35836 cvmliftphtlem 35848 knoppcnlem10 37150 cxpcncf2 46673 |
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