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Mirrors > Home > ILE Home > Th. List > fvsnun2 | Unicode version |
Description: The value of a function with one of its ordered pairs replaced, at arguments other than the replaced one. See also fvsnun1 5508. (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 |
---|---|
fvsnun2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvsnun.3 |
. . . . 5
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2 | 1 | reseq1i 4722 |
. . . 4
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3 | resundir 4740 |
. . . 4
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4 | disjdif 3359 |
. . . . . . 7
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5 | fvsnun.1 |
. . . . . . . . 9
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6 | fvsnun.2 |
. . . . . . . . 9
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7 | 5, 6 | fnsn 5081 |
. . . . . . . 8
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8 | fnresdisj 5137 |
. . . . . . . 8
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9 | 7, 8 | ax-mp 7 |
. . . . . . 7
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10 | 4, 9 | mpbi 144 |
. . . . . 6
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11 | residm 4757 |
. . . . . 6
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12 | 10, 11 | uneq12i 3153 |
. . . . 5
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13 | uncom 3145 |
. . . . 5
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14 | un0 3320 |
. . . . 5
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15 | 12, 13, 14 | 3eqtri 2113 |
. . . 4
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16 | 2, 3, 15 | 3eqtri 2113 |
. . 3
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17 | 16 | fveq1i 5319 |
. 2
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18 | fvres 5342 |
. 2
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19 | fvres 5342 |
. 2
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20 | 17, 18, 19 | 3eqtr3a 2145 |
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 105 ax-ia2 106 ax-ia3 107 ax-in1 580 ax-in2 581 ax-io 666 ax-5 1382 ax-7 1383 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-8 1441 ax-10 1442 ax-11 1443 ax-i12 1444 ax-bndl 1445 ax-4 1446 ax-14 1451 ax-17 1465 ax-i9 1469 ax-ial 1473 ax-i5r 1474 ax-ext 2071 ax-sep 3963 ax-pow 4015 ax-pr 4045 |
This theorem depends on definitions: df-bi 116 df-3an 927 df-tru 1293 df-fal 1296 df-nf 1396 df-sb 1694 df-eu 1952 df-mo 1953 df-clab 2076 df-cleq 2082 df-clel 2085 df-nfc 2218 df-ral 2365 df-rex 2366 df-v 2622 df-dif 3002 df-un 3004 df-in 3006 df-ss 3013 df-nul 3288 df-pw 3435 df-sn 3456 df-pr 3457 df-op 3459 df-uni 3660 df-br 3852 df-opab 3906 df-id 4129 df-xp 4457 df-rel 4458 df-cnv 4459 df-co 4460 df-dm 4461 df-res 4463 df-iota 4993 df-fun 5030 df-fn 5031 df-fv 5036 |
This theorem is referenced by: facnn 10189 |
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