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Mirrors > Home > ILE Home > Th. List > cnmpt22 | Unicode version |
Description: The composition of continuous functions is continuous. (Contributed by Mario Carneiro, 5-May-2014.) (Revised by Mario Carneiro, 22-Aug-2015.) |
Ref | Expression |
---|---|
cnmpt21.j | TopOn |
cnmpt21.k | TopOn |
cnmpt21.a | |
cnmpt2t.b | |
cnmpt22.l | TopOn |
cnmpt22.m | TopOn |
cnmpt22.c | |
cnmpt22.d |
Ref | Expression |
---|---|
cnmpt22 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ov 5856 | . . . 4 | |
2 | cnmpt21.j | . . . . . . . . . 10 TopOn | |
3 | cnmpt21.k | . . . . . . . . . 10 TopOn | |
4 | txtopon 13056 | . . . . . . . . . 10 TopOn TopOn TopOn | |
5 | 2, 3, 4 | syl2anc 409 | . . . . . . . . 9 TopOn |
6 | cnmpt22.l | . . . . . . . . 9 TopOn | |
7 | cnmpt21.a | . . . . . . . . 9 | |
8 | cnf2 12999 | . . . . . . . . 9 TopOn TopOn | |
9 | 5, 6, 7, 8 | syl3anc 1233 | . . . . . . . 8 |
10 | eqid 2170 | . . . . . . . . 9 | |
11 | 10 | fmpo 6180 | . . . . . . . 8 |
12 | 9, 11 | sylibr 133 | . . . . . . 7 |
13 | rsp2 2520 | . . . . . . 7 | |
14 | 12, 13 | syl 14 | . . . . . 6 |
15 | 14 | 3impib 1196 | . . . . 5 |
16 | cnmpt22.m | . . . . . . . . 9 TopOn | |
17 | cnmpt2t.b | . . . . . . . . 9 | |
18 | cnf2 12999 | . . . . . . . . 9 TopOn TopOn | |
19 | 5, 16, 17, 18 | syl3anc 1233 | . . . . . . . 8 |
20 | eqid 2170 | . . . . . . . . 9 | |
21 | 20 | fmpo 6180 | . . . . . . . 8 |
22 | 19, 21 | sylibr 133 | . . . . . . 7 |
23 | rsp2 2520 | . . . . . . 7 | |
24 | 22, 23 | syl 14 | . . . . . 6 |
25 | 24 | 3impib 1196 | . . . . 5 |
26 | 15, 25 | jca 304 | . . . . . 6 |
27 | txtopon 13056 | . . . . . . . . . . 11 TopOn TopOn TopOn | |
28 | 6, 16, 27 | syl2anc 409 | . . . . . . . . . 10 TopOn |
29 | cnmpt22.c | . . . . . . . . . . . 12 | |
30 | cntop2 12996 | . . . . . . . . . . . 12 | |
31 | 29, 30 | syl 14 | . . . . . . . . . . 11 |
32 | toptopon2 12811 | . . . . . . . . . . 11 TopOn | |
33 | 31, 32 | sylib 121 | . . . . . . . . . 10 TopOn |
34 | cnf2 12999 | . . . . . . . . . 10 TopOn TopOn | |
35 | 28, 33, 29, 34 | syl3anc 1233 | . . . . . . . . 9 |
36 | eqid 2170 | . . . . . . . . . 10 | |
37 | 36 | fmpo 6180 | . . . . . . . . 9 |
38 | 35, 37 | sylibr 133 | . . . . . . . 8 |
39 | r2al 2489 | . . . . . . . 8 | |
40 | 38, 39 | sylib 121 | . . . . . . 7 |
41 | 40 | 3ad2ant1 1013 | . . . . . 6 |
42 | eleq1 2233 | . . . . . . . . 9 | |
43 | eleq1 2233 | . . . . . . . . 9 | |
44 | 42, 43 | bi2anan9 601 | . . . . . . . 8 |
45 | cnmpt22.d | . . . . . . . . 9 | |
46 | 45 | eleq1d 2239 | . . . . . . . 8 |
47 | 44, 46 | imbi12d 233 | . . . . . . 7 |
48 | 47 | spc2gv 2821 | . . . . . 6 |
49 | 26, 41, 26, 48 | syl3c 63 | . . . . 5 |
50 | 45, 36 | ovmpoga 5982 | . . . . 5 |
51 | 15, 25, 49, 50 | syl3anc 1233 | . . . 4 |
52 | 1, 51 | eqtr3id 2217 | . . 3 |
53 | 52 | mpoeq3dva 5917 | . 2 |
54 | 2, 3, 7, 17 | cnmpt2t 13087 | . . 3 |
55 | 2, 3, 54, 29 | cnmpt21f 13086 | . 2 |
56 | 53, 55 | eqeltrrd 2248 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 w3a 973 wal 1346 wceq 1348 wcel 2141 wral 2448 cop 3586 cuni 3796 cxp 4609 wf 5194 cfv 5198 (class class class)co 5853 cmpo 5855 ctop 12789 TopOnctopon 12802 ccn 12979 ctx 13046 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-coll 4104 ax-sep 4107 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-ral 2453 df-rex 2454 df-reu 2455 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-iun 3875 df-br 3990 df-opab 4051 df-mpt 4052 df-id 4278 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-f1 5203 df-fo 5204 df-f1o 5205 df-fv 5206 df-ov 5856 df-oprab 5857 df-mpo 5858 df-1st 6119 df-2nd 6120 df-map 6628 df-topgen 12600 df-top 12790 df-topon 12803 df-bases 12835 df-cn 12982 df-tx 13047 |
This theorem is referenced by: cnmpt22f 13089 |
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