| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 6040 | . 2 ⊢ ( I ↾ 𝑋) = (𝑥 ∈ 𝑋 ↦ 𝑥) | |
| 2 | cnmptid.j | . . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
| 3 | idcn 23317 | . . 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 2867 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝑥) ∈ (𝐽 Cn 𝐽)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2142 ↦ cmpt 5181 I cid 5541 ↾ cres 5649 ‘cfv 6521 (class class class)co 7396 TopOnctopon 22970 Cn ccn 23284 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-sep 5246 ax-nul 5256 ax-pow 5322 ax-pr 5390 ax-un 7718 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-ral 3077 df-rex 3087 df-rab 3415 df-v 3456 df-sbc 3745 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5542 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-ov 7399 df-oprab 7400 df-mpo 7401 df-map 8810 df-top 22954 df-topon 22971 df-cn 23287 |
| This theorem is referenced by: xkoinjcn 23747 txconn 23749 imasnopn 23750 imasncld 23751 imasncls 23752 pt1hmeo 23866 istgp2 24151 tmdmulg 24152 tmdlactcn 24162 clsnsg 24170 tgpt0 24179 tlmtgp 24256 nmcn 24905 expcn 24934 divccn 24935 cncfmptid 24975 cdivcncf 24983 iirevcn 24992 iihalf1cn 24994 iihalf2cn 24996 icchmeo 25003 evth2 25022 pcocn 25079 pcopt 25084 pcopt2 25085 pcoass 25086 csscld 25311 clsocv 25312 dvcnvlem 26038 resqrtcn 26814 sqrtcn 26815 efrlim 27034 ipasslem7 31039 occllem 31506 hmopidmchi 32354 rmulccn 34225 cxpcncf1 34889 cvxpconn 35592 cvmlift2lem2 35654 cvmlift2lem3 35655 cvmliftphtlem 35667 knoppcnlem10 36940 cxpcncf2 46473 |
| Copyright terms: Public domain | W3C validator |