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Mirrors > Home > MPE Home > Th. List > iunex | Structured version Visualization version GIF version |
Description: The existence of an indexed union. 𝑥 is normally a free-variable parameter in the class expression substituted for 𝐵, which can be read informally as 𝐵(𝑥). (Contributed by NM, 13-Oct-2003.) |
Ref | Expression |
---|---|
iunex.1 | ⊢ 𝐴 ∈ V |
iunex.2 | ⊢ 𝐵 ∈ V |
Ref | Expression |
---|---|
iunex | ⊢ ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iunex.1 | . 2 ⊢ 𝐴 ∈ V | |
2 | iunex.2 | . . 3 ⊢ 𝐵 ∈ V | |
3 | 2 | rgenw 3118 | . 2 ⊢ ∀𝑥 ∈ 𝐴 𝐵 ∈ V |
4 | iunexg 7646 | . 2 ⊢ ((𝐴 ∈ V ∧ ∀𝑥 ∈ 𝐴 𝐵 ∈ V) → ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V) | |
5 | 1, 3, 4 | mp2an 691 | 1 ⊢ ∪ 𝑥 ∈ 𝐴 𝐵 ∈ V |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 2111 ∀wral 3106 Vcvv 3441 ∪ ciun 4881 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-rep 5154 ax-sep 5167 ax-nul 5174 ax-pr 5295 ax-un 7441 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-ral 3111 df-rex 3112 df-reu 3113 df-rab 3115 df-v 3443 df-sbc 3721 df-csb 3829 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-rn 5530 df-res 5531 df-ima 5532 df-iota 6283 df-fun 6326 df-fn 6327 df-f 6328 df-f1 6329 df-fo 6330 df-f1o 6331 df-fv 6332 |
This theorem is referenced by: tz9.1 9155 tz9.1c 9156 cplem2 9303 fseqdom 9437 pwsdompw 9615 cfsmolem 9681 ac6c4 9892 konigthlem 9979 alephreg 9993 pwfseqlem4 10073 pwfseqlem5 10074 pwxpndom2 10076 wunex2 10149 wuncval2 10158 inar1 10186 rtrclreclem1 14408 dfrtrclrec2 14409 rtrclreclem2 14410 rtrclreclem4 14412 isfunc 17126 smndex1bas 18063 smndex1sgrp 18065 smndex1mnd 18067 smndex1id 18068 dfac14 22223 txcmplem2 22247 cnextfval 22667 bnj893 32310 colinearex 33634 volsupnfl 35102 heiborlem3 35251 comptiunov2i 40407 corclrcl 40408 iunrelexpmin1 40409 trclrelexplem 40412 iunrelexpmin2 40413 dftrcl3 40421 trclfvcom 40424 cnvtrclfv 40425 cotrcltrcl 40426 trclimalb2 40427 trclfvdecomr 40429 dfrtrcl3 40434 dfrtrcl4 40439 corcltrcl 40440 cotrclrcl 40443 carageniuncllem1 43160 carageniuncllem2 43161 carageniuncl 43162 caratheodorylem1 43165 caratheodorylem2 43166 ovnovollem1 43295 ovnovollem2 43296 smfresal 43420 |
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