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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 6361 and eluni2 4440. (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 2918 |
. . 3
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2 | 19.42v 1918 |
. . . . 5
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3 | df-rex 2918 |
. . . . . 6
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4 | 3 | anbi2i 730 |
. . . . 5
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5 | 2, 4 | bitr4i 267 |
. . . 4
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6 | 5 | exbii 1774 |
. . 3
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7 | 1, 6 | bitr4i 267 |
. 2
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8 | rexunirn.2 |
. . . . . . . 8
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9 | rexunirn.1 |
. . . . . . . . 9
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10 | 9 | elrnmpt1 5374 |
. . . . . . . 8
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11 | 8, 10 | mpdan 702 |
. . . . . . 7
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12 | eleq2 2690 |
. . . . . . . . 9
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13 | 12 | anbi1d 741 |
. . . . . . . 8
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14 | 13 | rspcev 3309 |
. . . . . . 7
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15 | 11, 14 | sylan 488 |
. . . . . 6
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16 | r19.41v 3089 |
. . . . . 6
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17 | 15, 16 | sylib 208 |
. . . . 5
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18 | 17 | eximi 1762 |
. . . 4
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19 | df-rex 2918 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
20 | eluni2 4440 |
. . . . . . 7
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
21 | 20 | anbi1i 731 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
22 | 21 | exbii 1774 |
. . . . 5
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23 | 19, 22 | bitri 264 |
. . . 4
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24 | 18, 23 | sylibr 224 |
. . 3
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25 | 24 | exlimiv 1858 |
. 2
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26 | 7, 25 | sylbi 207 |
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 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-sep 4781 ax-nul 4789 ax-pr 4906 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-rex 2918 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-br 4654 df-opab 4713 df-mpt 4730 df-cnv 5122 df-dm 5124 df-rn 5125 |
This theorem is referenced by: (None) |
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