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Mirrors > Home > MPE Home > Th. List > cncnpi | Structured version Visualization version Unicode version |
Description: A continuous function is continuous at all points. One direction of Theorem 7.2(g) of [Munkres] p. 107. (Contributed by Raph Levien, 20-Nov-2006.) (Proof shortened by Mario Carneiro, 21-Aug-2015.) |
Ref | Expression |
---|---|
cnsscnp.1 |
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Ref | Expression |
---|---|
cncnpi |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnsscnp.1 |
. . . 4
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2 | eqid 2622 |
. . . 4
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3 | 1, 2 | cnf 21050 |
. . 3
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4 | 3 | adantr 481 |
. 2
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5 | cnima 21069 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
6 | 5 | ad2ant2r 783 |
. . . . 5
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7 | simpr 477 |
. . . . . . 7
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8 | 7 | adantr 481 |
. . . . . 6
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9 | simprr 796 |
. . . . . 6
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10 | 3 | ad2antrr 762 |
. . . . . . 7
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11 | ffn 6045 |
. . . . . . 7
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12 | elpreima 6337 |
. . . . . . 7
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13 | 10, 11, 12 | 3syl 18 |
. . . . . 6
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14 | 8, 9, 13 | mpbir2and 957 |
. . . . 5
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15 | eqimss 3657 |
. . . . . . . 8
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16 | 15 | biantrud 528 |
. . . . . . 7
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17 | eleq2 2690 |
. . . . . . 7
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18 | 16, 17 | bitr3d 270 |
. . . . . 6
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19 | 18 | rspcev 3309 |
. . . . 5
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20 | 6, 14, 19 | syl2anc 693 |
. . . 4
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21 | 20 | expr 643 |
. . 3
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22 | 21 | ralrimiva 2966 |
. 2
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23 | cntop1 21044 |
. . . . 5
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24 | 23 | adantr 481 |
. . . 4
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25 | 1 | toptopon 20722 |
. . . 4
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26 | 24, 25 | sylib 208 |
. . 3
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27 | cntop2 21045 |
. . . . 5
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28 | 27 | adantr 481 |
. . . 4
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29 | 2 | toptopon 20722 |
. . . 4
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30 | 28, 29 | sylib 208 |
. . 3
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31 | iscnp3 21048 |
. . 3
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32 | 26, 30, 7, 31 | syl3anc 1326 |
. 2
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33 | 4, 22, 32 | mpbir2and 957 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-ral 2917 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-fv 5896 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-map 7859 df-top 20699 df-topon 20716 df-cn 21031 df-cnp 21032 |
This theorem is referenced by: cnsscnp 21083 cncnp 21084 lmcn 21109 ptcn 21430 tmdcn2 21893 ghmcnp 21918 tsmsmhm 21949 tsmsadd 21950 dvcnp2 23683 dvaddbr 23701 dvmulbr 23702 dvcobr 23709 dvcjbr 23712 dvcnvlem 23739 lhop1lem 23776 dvcnvrelem2 23781 ftc1cn 23806 taylthlem2 24128 psercn 24180 abelth 24195 cxpcn3 24489 efrlim 24696 blocni 27660 cvmlift2lem11 31295 cvmlift2lem12 31296 cvmlift3lem7 31307 poimir 33442 ftc1cnnc 33484 cncfiooicclem1 40106 fouriercn 40449 |
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