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Mirrors > Home > MPE Home > Th. List > f1oprswap | Structured version Visualization version Unicode version |
Description: A two-element swap is a bijection on a pair. (Contributed by Mario Carneiro, 23-Jan-2015.) |
Ref | Expression |
---|---|
f1oprswap |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | f1osng 6177 |
. . . . 5
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2 | 1 | anidms 677 |
. . . 4
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3 | 2 | ad2antrr 762 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
4 | dfsn2 4190 |
. . . . . 6
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5 | opeq2 4403 |
. . . . . . 7
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6 | opeq1 4402 |
. . . . . . 7
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7 | 5, 6 | preq12d 4276 |
. . . . . 6
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8 | 4, 7 | syl5eq 2668 |
. . . . 5
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9 | dfsn2 4190 |
. . . . . 6
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10 | preq2 4269 |
. . . . . 6
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11 | 9, 10 | syl5eq 2668 |
. . . . 5
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12 | 8, 11, 11 | f1oeq123d 6133 |
. . . 4
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13 | 12 | adantl 482 |
. . 3
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14 | 3, 13 | mpbid 222 |
. 2
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15 | simpll 790 |
. . . 4
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16 | simplr 792 |
. . . 4
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17 | simpr 477 |
. . . 4
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18 | fnprg 5947 |
. . . 4
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19 | 15, 16, 16, 15, 17, 18 | syl221anc 1337 |
. . 3
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20 | cnvsng 5621 |
. . . . . . . . 9
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21 | cnvsng 5621 |
. . . . . . . . . 10
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22 | 21 | ancoms 469 |
. . . . . . . . 9
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23 | 20, 22 | uneq12d 3768 |
. . . . . . . 8
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24 | uncom 3757 |
. . . . . . . 8
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25 | 23, 24 | syl6eq 2672 |
. . . . . . 7
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26 | 25 | adantr 481 |
. . . . . 6
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27 | df-pr 4180 |
. . . . . . . 8
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28 | 27 | cnveqi 5297 |
. . . . . . 7
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29 | cnvun 5538 |
. . . . . . 7
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30 | 28, 29 | eqtri 2644 |
. . . . . 6
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31 | 26, 30, 27 | 3eqtr4g 2681 |
. . . . 5
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32 | 31 | fneq1d 5981 |
. . . 4
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33 | 19, 32 | mpbird 247 |
. . 3
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34 | dff1o4 6145 |
. . 3
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35 | 19, 33, 34 | sylanbrc 698 |
. 2
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36 | 14, 35 | pm2.61dane 2881 |
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-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
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-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-br 4654 df-opab 4713 df-id 5024 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 |
This theorem is referenced by: fveqf1o 6557 symg2bas 17818 subfacp1lem2a 31162 |
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