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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 6016 | . 2 ⊢ ( I ↾ 𝑋) = (𝑥 ∈ 𝑋 ↦ 𝑥) | |
| 2 | cnmptid.j | . . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
| 3 | idcn 23222 | . . 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 2841 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝑥) ∈ (𝐽 Cn 𝐽)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ↦ cmpt 5166 I cid 5525 ↾ cres 5633 ‘cfv 6498 (class class class)co 7367 TopOnctopon 22875 Cn ccn 23189 |
| 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 2185 ax-ext 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-sbc 3729 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-ov 7370 df-oprab 7371 df-mpo 7372 df-map 8775 df-top 22859 df-topon 22876 df-cn 23192 |
| This theorem is referenced by: xkoinjcn 23652 txconn 23654 imasnopn 23655 imasncld 23656 imasncls 23657 pt1hmeo 23771 istgp2 24056 tmdmulg 24057 tmdlactcn 24067 clsnsg 24075 tgpt0 24084 tlmtgp 24161 nmcn 24810 expcn 24839 divccn 24840 cncfmptid 24880 cdivcncf 24888 iirevcn 24897 iihalf1cn 24899 iihalf2cn 24901 icchmeo 24908 evth2 24927 pcocn 24984 pcopt 24989 pcopt2 24990 pcoass 24991 csscld 25216 clsocv 25217 dvcnvlem 25943 resqrtcn 26713 sqrtcn 26714 efrlim 26933 ipasslem7 30907 occllem 31374 hmopidmchi 32222 rmulccn 34072 cxpcncf1 34739 cvxpconn 35424 cvmlift2lem2 35486 cvmlift2lem3 35487 cvmliftphtlem 35499 knoppcnlem10 36762 cxpcncf2 46327 |
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