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Mirrors > Home > ILE Home > Th. List > setsfun | Unicode version |
Description: A structure with replacement is a function if the original structure is a function. (Contributed by AV, 7-Jun-2021.) |
Ref | Expression |
---|---|
setsfun |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | funres 5296 |
. . . 4
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2 | 1 | ad2antlr 489 |
. . 3
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3 | funsng 5301 |
. . . 4
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4 | 3 | adantl 277 |
. . 3
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5 | dmres 4964 |
. . . . . 6
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6 | 5 | ineq1i 3357 |
. . . . 5
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7 | in32 3372 |
. . . . . 6
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8 | incom 3352 |
. . . . . . . 8
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9 | disjdif 3520 |
. . . . . . . 8
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10 | 8, 9 | eqtri 2214 |
. . . . . . 7
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11 | 10 | ineq1i 3357 |
. . . . . 6
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12 | 0in 3483 |
. . . . . 6
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13 | 7, 11, 12 | 3eqtri 2218 |
. . . . 5
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14 | 6, 13 | eqtri 2214 |
. . . 4
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15 | 14 | a1i 9 |
. . 3
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16 | funun 5299 |
. . 3
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17 | 2, 4, 15, 16 | syl21anc 1248 |
. 2
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18 | simpll 527 |
. . . 4
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19 | opexg 4258 |
. . . . 5
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20 | 19 | adantl 277 |
. . . 4
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21 | setsvalg 12651 |
. . . 4
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22 | 18, 20, 21 | syl2anc 411 |
. . 3
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23 | 22 | funeqd 5277 |
. 2
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24 | 17, 23 | mpbird 167 |
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 615 ax-in2 616 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-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 ax-un 4465 ax-setind 4570 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-fal 1370 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-ne 2365 df-ral 2477 df-rex 2478 df-rab 2481 df-v 2762 df-sbc 2987 df-dif 3156 df-un 3158 df-in 3160 df-ss 3167 df-nul 3448 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-opab 4092 df-id 4325 df-xp 4666 df-rel 4667 df-cnv 4668 df-co 4669 df-dm 4670 df-res 4672 df-iota 5216 df-fun 5257 df-fv 5263 df-ov 5922 df-oprab 5923 df-mpo 5924 df-sets 12628 |
This theorem is referenced by: (None) |
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