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Mirrors > Home > ILE Home > Th. List > cnmpt1t | 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 |
---|---|
cnmptid.j |
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cnmpt11.a |
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cnmpt1t.b |
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Ref | Expression |
---|---|
cnmpt1t |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnmptid.j |
. . . 4
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2 | toponuni 13518 |
. . . 4
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3 | mpteq1 4088 |
. . . 4
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4 | 1, 2, 3 | 3syl 17 |
. . 3
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5 | simpr 110 |
. . . . . 6
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6 | cnmpt11.a |
. . . . . . . . . 10
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7 | cntop2 13705 |
. . . . . . . . . 10
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8 | 6, 7 | syl 14 |
. . . . . . . . 9
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9 | toptopon2 13522 |
. . . . . . . . 9
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10 | 8, 9 | sylib 122 |
. . . . . . . 8
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11 | cnf2 13708 |
. . . . . . . 8
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12 | 1, 10, 6, 11 | syl3anc 1238 |
. . . . . . 7
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13 | 12 | fvmptelcdm 5670 |
. . . . . 6
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14 | eqid 2177 |
. . . . . . 7
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15 | 14 | fvmpt2 5600 |
. . . . . 6
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16 | 5, 13, 15 | syl2anc 411 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
17 | cnmpt1t.b |
. . . . . . . . . 10
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
18 | cntop2 13705 |
. . . . . . . . . 10
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
19 | 17, 18 | syl 14 |
. . . . . . . . 9
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20 | toptopon2 13522 |
. . . . . . . . 9
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
21 | 19, 20 | sylib 122 |
. . . . . . . 8
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22 | cnf2 13708 |
. . . . . . . 8
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
23 | 1, 21, 17, 22 | syl3anc 1238 |
. . . . . . 7
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24 | 23 | fvmptelcdm 5670 |
. . . . . 6
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25 | eqid 2177 |
. . . . . . 7
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26 | 25 | fvmpt2 5600 |
. . . . . 6
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27 | 5, 24, 26 | syl2anc 411 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
28 | 16, 27 | opeq12d 3787 |
. . . 4
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29 | 28 | mpteq2dva 4094 |
. . 3
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30 | 4, 29 | eqtr3d 2212 |
. 2
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31 | eqid 2177 |
. . . 4
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32 | nfcv 2319 |
. . . . 5
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33 | nffvmpt1 5527 |
. . . . . 6
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34 | nffvmpt1 5527 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
35 | 33, 34 | nfop 3795 |
. . . . 5
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36 | fveq2 5516 |
. . . . . 6
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37 | fveq2 5516 |
. . . . . 6
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38 | 36, 37 | opeq12d 3787 |
. . . . 5
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39 | 32, 35, 38 | cbvmpt 4099 |
. . . 4
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40 | 31, 39 | txcnmpt 13776 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
41 | 6, 17, 40 | syl2anc 411 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
42 | 30, 41 | eqeltrrd 2255 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-13 2150 ax-14 2151 ax-ext 2159 ax-coll 4119 ax-sep 4122 ax-pow 4175 ax-pr 4210 ax-un 4434 ax-setind 4537 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-fal 1359 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ne 2348 df-ral 2460 df-rex 2461 df-reu 2462 df-rab 2464 df-v 2740 df-sbc 2964 df-csb 3059 df-dif 3132 df-un 3134 df-in 3136 df-ss 3143 df-nul 3424 df-pw 3578 df-sn 3599 df-pr 3600 df-op 3602 df-uni 3811 df-iun 3889 df-br 4005 df-opab 4066 df-mpt 4067 df-id 4294 df-xp 4633 df-rel 4634 df-cnv 4635 df-co 4636 df-dm 4637 df-rn 4638 df-res 4639 df-ima 4640 df-iota 5179 df-fun 5219 df-fn 5220 df-f 5221 df-f1 5222 df-fo 5223 df-f1o 5224 df-fv 5225 df-ov 5878 df-oprab 5879 df-mpo 5880 df-1st 6141 df-2nd 6142 df-map 6650 df-topgen 12709 df-top 13501 df-topon 13514 df-bases 13546 df-cn 13691 df-tx 13756 |
This theorem is referenced by: cnmpt12f 13789 imasnopn 13802 cnrehmeocntop 14096 |
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