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Mirrors > Home > ILE Home > Th. List > fvsnun1 | Unicode version |
Description: The value of a function with one of its ordered pairs replaced, at the replaced ordered pair. See also fvsnun2 5716. (Contributed by NM, 23-Sep-2007.) |
Ref | Expression |
---|---|
fvsnun.1 |
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fvsnun.2 |
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fvsnun.3 |
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Ref | Expression |
---|---|
fvsnun1 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvsnun.3 |
. . . . 5
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2 | 1 | reseq1i 4905 |
. . . 4
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3 | resundir 4923 |
. . . . 5
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4 | incom 3329 |
. . . . . . . . 9
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5 | disjdif 3497 |
. . . . . . . . 9
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6 | 4, 5 | eqtri 2198 |
. . . . . . . 8
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7 | resdisj 5059 |
. . . . . . . 8
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8 | 6, 7 | ax-mp 5 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
9 | 8 | uneq2i 3288 |
. . . . . 6
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10 | un0 3458 |
. . . . . 6
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11 | 9, 10 | eqtri 2198 |
. . . . 5
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12 | 3, 11 | eqtri 2198 |
. . . 4
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13 | 2, 12 | eqtri 2198 |
. . 3
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14 | 13 | fveq1i 5518 |
. 2
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15 | fvsnun.1 |
. . . 4
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16 | 15 | snid 3625 |
. . 3
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17 | fvres 5541 |
. . 3
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18 | 16, 17 | ax-mp 5 |
. 2
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19 | fvres 5541 |
. . . 4
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20 | 16, 19 | ax-mp 5 |
. . 3
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21 | fvsnun.2 |
. . . 4
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22 | 15, 21 | fvsn 5713 |
. . 3
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23 | 20, 22 | eqtri 2198 |
. 2
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24 | 14, 18, 23 | 3eqtr3i 2206 |
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-14 2151 ax-ext 2159 ax-sep 4123 ax-pow 4176 ax-pr 4211 |
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-ral 2460 df-rex 2461 df-v 2741 df-sbc 2965 df-dif 3133 df-un 3135 df-in 3137 df-ss 3144 df-nul 3425 df-pw 3579 df-sn 3600 df-pr 3601 df-op 3603 df-uni 3812 df-br 4006 df-opab 4067 df-id 4295 df-xp 4634 df-rel 4635 df-cnv 4636 df-co 4637 df-dm 4638 df-res 4640 df-iota 5180 df-fun 5220 df-fv 5226 |
This theorem is referenced by: fac0 10710 |
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