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Mirrors > Home > ILE Home > Th. List > mpteqb | Unicode version |
Description: Bidirectional equality theorem for a mapping abstraction. Equivalent to eqfnfv 5655. (Contributed by Mario Carneiro, 14-Nov-2014.) |
Ref | Expression |
---|---|
mpteqb |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elex 2771 |
. . 3
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2 | 1 | ralimi 2557 |
. 2
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3 | fneq1 5342 |
. . . . . . 7
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4 | eqid 2193 |
. . . . . . . 8
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5 | 4 | mptfng 5379 |
. . . . . . 7
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6 | eqid 2193 |
. . . . . . . 8
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7 | 6 | mptfng 5379 |
. . . . . . 7
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8 | 3, 5, 7 | 3bitr4g 223 |
. . . . . 6
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9 | 8 | biimpd 144 |
. . . . 5
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10 | r19.26 2620 |
. . . . . . 7
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11 | nfmpt1 4122 |
. . . . . . . . . 10
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12 | nfmpt1 4122 |
. . . . . . . . . 10
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13 | 11, 12 | nfeq 2344 |
. . . . . . . . 9
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14 | simpll 527 |
. . . . . . . . . . . 12
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15 | 14 | fveq1d 5556 |
. . . . . . . . . . 11
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16 | 4 | fvmpt2 5641 |
. . . . . . . . . . . 12
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17 | 16 | ad2ant2lr 510 |
. . . . . . . . . . 11
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18 | 6 | fvmpt2 5641 |
. . . . . . . . . . . 12
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19 | 18 | ad2ant2l 508 |
. . . . . . . . . . 11
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20 | 15, 17, 19 | 3eqtr3d 2234 |
. . . . . . . . . 10
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21 | 20 | exp31 364 |
. . . . . . . . 9
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22 | 13, 21 | ralrimi 2565 |
. . . . . . . 8
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23 | ralim 2553 |
. . . . . . . 8
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24 | 22, 23 | syl 14 |
. . . . . . 7
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25 | 10, 24 | biimtrrid 153 |
. . . . . 6
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26 | 25 | expd 258 |
. . . . 5
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27 | 9, 26 | mpdd 41 |
. . . 4
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28 | 27 | com12 30 |
. . 3
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29 | eqid 2193 |
. . . 4
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30 | mpteq12 4112 |
. . . 4
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31 | 29, 30 | mpan 424 |
. . 3
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32 | 28, 31 | impbid1 142 |
. 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-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-sbc 2986 df-csb 3081 df-un 3157 df-in 3159 df-ss 3166 df-pw 3603 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-opab 4091 df-mpt 4092 df-id 4324 df-xp 4665 df-rel 4666 df-cnv 4667 df-co 4668 df-dm 4669 df-iota 5215 df-fun 5256 df-fn 5257 df-fv 5262 |
This theorem is referenced by: eqfnfv 5655 eufnfv 5789 offveqb 6150 nninfinf 10514 |
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