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Mirrors > Home > ILE Home > Th. List > fo1st | Unicode version |
Description: The ![]() |
Ref | Expression |
---|---|
fo1st |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2763 |
. . . . . 6
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2 | 1 | snex 4214 |
. . . . 5
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3 | 2 | dmex 4928 |
. . . 4
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4 | 3 | uniex 4468 |
. . 3
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5 | df-1st 6193 |
. . 3
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6 | 4, 5 | fnmpti 5382 |
. 2
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7 | 5 | rnmpt 4910 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
8 | vex 2763 |
. . . . 5
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9 | 8, 8 | opex 4258 |
. . . . . 6
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10 | 8, 8 | op1sta 5147 |
. . . . . . 7
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11 | 10 | eqcomi 2197 |
. . . . . 6
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12 | sneq 3629 |
. . . . . . . . . 10
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13 | 12 | dmeqd 4864 |
. . . . . . . . 9
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14 | 13 | unieqd 3846 |
. . . . . . . 8
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15 | 14 | eqeq2d 2205 |
. . . . . . 7
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16 | 15 | rspcev 2864 |
. . . . . 6
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17 | 9, 11, 16 | mp2an 426 |
. . . . 5
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18 | 8, 17 | 2th 174 |
. . . 4
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19 | 18 | abbi2i 2308 |
. . 3
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20 | 7, 19 | eqtr4i 2217 |
. 2
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21 | df-fo 5260 |
. 2
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22 | 6, 20, 21 | mpbir2an 944 |
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-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4147 ax-pow 4203 ax-pr 4238 ax-un 4464 |
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-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-rn 4670 df-fun 5256 df-fn 5257 df-fo 5260 df-1st 6193 |
This theorem is referenced by: 1stcof 6216 1stexg 6220 df1st2 6272 1stconst 6274 algrflem 6282 algrflemg 6283 suplocexprlemell 7773 suplocexprlem2b 7774 suplocexprlemlub 7784 upxp 14440 uptx 14442 cnmpt1st 14456 |
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