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Mirrors > Home > ILE Home > Th. List > mpteqb | Unicode version |
Description: Bidirectional equality theorem for a mapping abstraction. Equivalent to eqfnfv 5397. (Contributed by Mario Carneiro, 14-Nov-2014.) |
Ref | Expression |
---|---|
mpteqb |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 2630 |
. . 3
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2 | 1 | ralimi 2438 |
. 2
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3 | fneq1 5102 |
. . . . . . 7
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4 | eqid 2088 |
. . . . . . . 8
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5 | 4 | mptfng 5139 |
. . . . . . 7
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6 | eqid 2088 |
. . . . . . . 8
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7 | 6 | mptfng 5139 |
. . . . . . 7
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8 | 3, 5, 7 | 3bitr4g 221 |
. . . . . 6
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9 | 8 | biimpd 142 |
. . . . 5
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10 | r19.26 2497 |
. . . . . . 7
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11 | nfmpt1 3931 |
. . . . . . . . . 10
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12 | nfmpt1 3931 |
. . . . . . . . . 10
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13 | 11, 12 | nfeq 2236 |
. . . . . . . . 9
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14 | simpll 496 |
. . . . . . . . . . . 12
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15 | 14 | fveq1d 5307 |
. . . . . . . . . . 11
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16 | 4 | fvmpt2 5386 |
. . . . . . . . . . . 12
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17 | 16 | ad2ant2lr 494 |
. . . . . . . . . . 11
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18 | 6 | fvmpt2 5386 |
. . . . . . . . . . . 12
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19 | 18 | ad2ant2l 492 |
. . . . . . . . . . 11
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20 | 15, 17, 19 | 3eqtr3d 2128 |
. . . . . . . . . 10
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21 | 20 | exp31 356 |
. . . . . . . . 9
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22 | 13, 21 | ralrimi 2444 |
. . . . . . . 8
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23 | ralim 2434 |
. . . . . . . 8
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24 | 22, 23 | syl 14 |
. . . . . . 7
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25 | 10, 24 | syl5bir 151 |
. . . . . 6
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26 | 25 | expd 254 |
. . . . 5
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27 | 9, 26 | mpdd 40 |
. . . 4
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28 | 27 | com12 30 |
. . 3
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29 | eqid 2088 |
. . . 4
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30 | mpteq12 3921 |
. . . 4
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31 | 29, 30 | mpan 415 |
. . 3
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32 | 28, 31 | impbid1 140 |
. 2
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33 | 2, 32 | syl 14 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 665 ax-5 1381 ax-7 1382 ax-gen 1383 ax-ie1 1427 ax-ie2 1428 ax-8 1440 ax-10 1441 ax-11 1442 ax-i12 1443 ax-bndl 1444 ax-4 1445 ax-14 1450 ax-17 1464 ax-i9 1468 ax-ial 1472 ax-i5r 1473 ax-ext 2070 ax-sep 3957 ax-pow 4009 ax-pr 4036 |
This theorem depends on definitions: df-bi 115 df-3an 926 df-tru 1292 df-nf 1395 df-sb 1693 df-eu 1951 df-mo 1952 df-clab 2075 df-cleq 2081 df-clel 2084 df-nfc 2217 df-ral 2364 df-rex 2365 df-v 2621 df-sbc 2841 df-csb 2934 df-un 3003 df-in 3005 df-ss 3012 df-pw 3431 df-sn 3452 df-pr 3453 df-op 3455 df-uni 3654 df-br 3846 df-opab 3900 df-mpt 3901 df-id 4120 df-xp 4444 df-rel 4445 df-cnv 4446 df-co 4447 df-dm 4448 df-iota 4980 df-fun 5017 df-fn 5018 df-fv 5023 |
This theorem is referenced by: eqfnfv 5397 eufnfv 5525 offveqb 5874 |
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