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Mirrors > Home > ILE Home > Th. List > 2reuswapdc | Unicode version |
Description: A condition allowing swap of uniqueness and existential quantifiers. (Contributed by Thierry Arnoux, 7-Apr-2017.) (Revised by NM, 16-Jun-2017.) |
Ref | Expression |
---|---|
2reuswapdc |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rmo 2480 |
. . 3
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2 | 1 | ralbii 2500 |
. 2
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3 | df-ral 2477 |
. . . 4
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4 | moanimv 2117 |
. . . . 5
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5 | 4 | albii 1481 |
. . . 4
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6 | 3, 5 | bitr4i 187 |
. . 3
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7 | df-reu 2479 |
. . . . . 6
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8 | r19.42v 2651 |
. . . . . . . . 9
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
9 | df-rex 2478 |
. . . . . . . . 9
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10 | 8, 9 | bitr3i 186 |
. . . . . . . 8
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11 | an12 561 |
. . . . . . . . 9
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12 | 11 | exbii 1616 |
. . . . . . . 8
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13 | 10, 12 | bitri 184 |
. . . . . . 7
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14 | 13 | eubii 2051 |
. . . . . 6
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15 | 7, 14 | bitri 184 |
. . . . 5
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16 | 2euswapdc 2133 |
. . . . 5
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17 | 15, 16 | syl7bi 165 |
. . . 4
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18 | df-reu 2479 |
. . . . . 6
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19 | r19.42v 2651 |
. . . . . . . 8
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20 | df-rex 2478 |
. . . . . . . 8
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21 | 19, 20 | bitr3i 186 |
. . . . . . 7
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22 | 21 | eubii 2051 |
. . . . . 6
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23 | 18, 22 | bitri 184 |
. . . . 5
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24 | 23 | imbi2i 226 |
. . . 4
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25 | 17, 24 | imbitrrdi 162 |
. . 3
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26 | 6, 25 | biimtrid 152 |
. 2
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27 | 2, 26 | biimtrid 152 |
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 |
This theorem depends on definitions: df-bi 117 df-dc 836 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-ral 2477 df-rex 2478 df-reu 2479 df-rmo 2480 |
This theorem is referenced by: (None) |
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