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Mirrors > Home > ILE Home > Th. List > reuss2 | Unicode version |
Description: Transfer uniqueness to a smaller subclass. (Contributed by NM, 20-Oct-2005.) |
Ref | Expression |
---|---|
reuss2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rex 2478 |
. . 3
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2 | df-reu 2479 |
. . 3
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3 | 1, 2 | anbi12i 460 |
. 2
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4 | df-ral 2477 |
. . . . . . 7
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5 | ssel 3173 |
. . . . . . . . . . . . . 14
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6 | anim12 344 |
. . . . . . . . . . . . . 14
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7 | 5, 6 | sylan 283 |
. . . . . . . . . . . . 13
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8 | 7 | exp4b 367 |
. . . . . . . . . . . 12
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9 | 8 | com23 78 |
. . . . . . . . . . 11
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10 | 9 | a2d 26 |
. . . . . . . . . 10
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11 | 10 | imp4a 349 |
. . . . . . . . 9
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12 | 11 | alimdv 1890 |
. . . . . . . 8
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13 | 12 | imp 124 |
. . . . . . 7
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14 | 4, 13 | sylan2b 287 |
. . . . . 6
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15 | euimmo 2109 |
. . . . . 6
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16 | 14, 15 | syl 14 |
. . . . 5
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17 | eu5 2089 |
. . . . . 6
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18 | 17 | simplbi2 385 |
. . . . 5
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19 | 16, 18 | syl9 72 |
. . . 4
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20 | 19 | imp32 257 |
. . 3
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21 | df-reu 2479 |
. . 3
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22 | 20, 21 | sylibr 134 |
. 2
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23 | 3, 22 | sylan2b 287 |
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-ext 2175 |
This theorem depends on definitions: df-bi 117 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-ral 2477 df-rex 2478 df-reu 2479 df-in 3159 df-ss 3166 |
This theorem is referenced by: reuss 3440 reuun1 3441 riotass2 5900 |
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