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Mathbox for Alexander van der Vekens |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > eliunxp2 | Structured version Visualization version Unicode version |
Description: Membership in a union of Cartesian products over its second component, analogous to eliunxp 5259. (Contributed by AV, 30-Mar-2019.) |
Ref | Expression |
---|---|
eliunxp2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relxp 5227 |
. . . . . . . 8
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
2 | 1 | rgenw 2924 |
. . . . . . 7
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3 | reliun 5239 |
. . . . . . 7
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4 | 2, 3 | mpbir 221 |
. . . . . 6
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
5 | elrel 5222 |
. . . . . 6
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6 | 4, 5 | mpan 706 |
. . . . 5
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7 | excom 2042 |
. . . . 5
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8 | 6, 7 | sylibr 224 |
. . . 4
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9 | 8 | pm4.71ri 665 |
. . 3
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10 | nfiu1 4550 |
. . . . 5
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
11 | 10 | nfel2 2781 |
. . . 4
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12 | 11 | 19.41 2103 |
. . 3
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13 | 19.41v 1914 |
. . . . 5
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14 | eleq1 2689 |
. . . . . . . 8
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15 | opeliun2xp 42111 |
. . . . . . . . 9
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16 | ancom 466 |
. . . . . . . . 9
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17 | 15, 16 | bitri 264 |
. . . . . . . 8
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18 | 14, 17 | syl6bb 276 |
. . . . . . 7
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19 | 18 | pm5.32i 669 |
. . . . . 6
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20 | 19 | exbii 1774 |
. . . . 5
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21 | 13, 20 | bitr3i 266 |
. . . 4
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22 | 21 | exbii 1774 |
. . 3
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23 | 9, 12, 22 | 3bitr2i 288 |
. 2
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24 | excom 2042 |
. 2
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25 | 23, 24 | bitri 264 |
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-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ral 2917 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-iun 4522 df-opab 4713 df-xp 5120 df-rel 5121 |
This theorem is referenced by: mpt2mptx2 42113 |
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