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Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > rexunirn | Structured version Visualization version Unicode version |
Description: Restricted existential quantification over the union of the range of a function. Cf. rexrn 6039 and eluni2 4194. (Contributed by Thierry Arnoux, 19-Sep-2017.) |
Ref | Expression |
---|---|
rexunirn.1 |
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rexunirn.2 |
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Ref | Expression |
---|---|
rexunirn |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rex 2762 |
. . 3
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2 | 19.42v 1842 |
. . . . 5
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3 | df-rex 2762 |
. . . . . 6
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4 | 3 | anbi2i 708 |
. . . . 5
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5 | 2, 4 | bitr4i 260 |
. . . 4
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6 | 5 | exbii 1726 |
. . 3
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7 | 1, 6 | bitr4i 260 |
. 2
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8 | rexunirn.2 |
. . . . . . . 8
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9 | rexunirn.1 |
. . . . . . . . 9
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10 | 9 | elrnmpt1 5089 |
. . . . . . . 8
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11 | 8, 10 | mpdan 681 |
. . . . . . 7
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12 | eleq2 2538 |
. . . . . . . . 9
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13 | 12 | anbi1d 719 |
. . . . . . . 8
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14 | 13 | rspcev 3136 |
. . . . . . 7
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15 | 11, 14 | sylan 479 |
. . . . . 6
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16 | r19.41v 2928 |
. . . . . 6
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17 | 15, 16 | sylib 201 |
. . . . 5
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18 | 17 | eximi 1715 |
. . . 4
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19 | df-rex 2762 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
20 | eluni2 4194 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
21 | 20 | anbi1i 709 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
22 | 21 | exbii 1726 |
. . . . 5
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23 | 19, 22 | bitri 257 |
. . . 4
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24 | 18, 23 | sylibr 217 |
. . 3
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25 | 24 | exlimiv 1784 |
. 2
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26 | 7, 25 | sylbi 200 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1677 ax-4 1690 ax-5 1766 ax-6 1813 ax-7 1859 ax-9 1913 ax-10 1932 ax-11 1937 ax-12 1950 ax-13 2104 ax-ext 2451 ax-sep 4518 ax-nul 4527 ax-pr 4639 |
This theorem depends on definitions: df-bi 190 df-or 377 df-an 378 df-3an 1009 df-tru 1455 df-ex 1672 df-nf 1676 df-sb 1806 df-eu 2323 df-mo 2324 df-clab 2458 df-cleq 2464 df-clel 2467 df-nfc 2601 df-ne 2643 df-rex 2762 df-rab 2765 df-v 3033 df-sbc 3256 df-csb 3350 df-dif 3393 df-un 3395 df-in 3397 df-ss 3404 df-nul 3723 df-if 3873 df-sn 3960 df-pr 3962 df-op 3966 df-uni 4191 df-br 4396 df-opab 4455 df-mpt 4456 df-cnv 4847 df-dm 4849 df-rn 4850 |
This theorem is referenced by: (None) |
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