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| Mirrors > Home > MPE Home > Th. List > brrelex2i | Structured version Visualization version GIF version | ||
| Description: The second argument of a binary relation exists. (An artifact of our ordered pair definition.) (Contributed by Mario Carneiro, 26-Apr-2015.) |
| Ref | Expression |
|---|---|
| brrelexi.1 | ⊢ Rel 𝑅 |
| Ref | Expression |
|---|---|
| brrelex2i | ⊢ (𝐴𝑅𝐵 → 𝐵 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | brrelexi.1 | . 2 ⊢ Rel 𝑅 | |
| 2 | brrelex2 5709 | . 2 ⊢ ((Rel 𝑅 ∧ 𝐴𝑅𝐵) → 𝐵 ∈ V) | |
| 3 | 1, 2 | mpan 703 | 1 ⊢ (𝐴𝑅𝐵 → 𝐵 ∈ V) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2146 Vcvv 3454 class class class wbr 5106 Rel wrel 5660 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 ax-sep 5252 ax-pr 5395 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2839 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-br 5107 df-opab 5171 df-xp 5661 df-rel 5662 |
| This theorem is used by: vtoclr 5718 brfvopabrbr 7001 domdifsn 9093 undom 9098 xpdom2 9105 xpdom1g 9107 domunsncan 9110 enfixsn 9119 fodomr 9161 pwdom 9162 domssex 9171 xpen 9173 mapdom1 9175 mapdom2 9181 pwen 9183 domtrfil 9221 sucdom2 9232 0sdom1dom 9251 1sdom2dom 9259 unxpdom 9264 unxpdom2 9265 sucxpdom 9266 isfinite2 9304 infn0ALT 9309 fin2inf 9310 fodomfir 9333 suppeqfsuppbi 9384 fsuppsssupp 9386 fsuppssov1 9389 fsuppunbi 9394 funsnfsupp 9397 mapfien2 9414 wemapso2 9560 card2on 9561 elharval 9568 harword 9570 brwdomi 9575 brwdomn0 9576 domwdom 9581 wdomtr 9582 wdompwdom 9585 canthwdom 9586 brwdom3i 9590 unwdomg 9591 xpwdomg 9592 unxpwdom 9596 infdifsn 9671 infdiffi 9672 isnum2 10039 wdomfil 10153 djuen 10261 djuenun 10262 djudom2 10275 djuxpdom 10277 djuinf 10280 infdju1 10281 pwdjuidm 10283 djulepw 10284 infdjuabs 10296 infdif 10299 pwdjudom 10306 infpss 10307 infmap2 10308 fictb 10335 infpssALT 10404 enfin2i 10412 fin34 10481 fodomb 10618 wdomac 10619 iundom2g 10637 iundom 10639 sdomsdomcard 10657 infxpidm 10659 engch 10726 fpwwe2lem3 10731 canthp1lem1 10750 canthp1lem2 10751 canthp1 10752 pwfseq 10762 pwxpndom2 10763 pwxpndom 10764 pwdjundom 10765 hargch 10771 gchaclem 10776 hasheni 14505 hashdomi 14537 clim 15676 rlim 15677 ntrivcvgn0 16082 ssc1 18011 ssc2 18012 ssctr 18015 frgpnabl 20104 dprddomprc 20231 dprdval 20234 dprdgrp 20236 dprdf 20237 dprdssv 20247 subgdmdprd 20265 dprd2da 20273 1stcrestlem 23785 hauspwdom 23835 isref 23843 ufilen 24264 dvle 26342 ellpi 33984 finextfldext 34352 locfinref 34529 weexenwe 35830 karddom 35903 kardsdom 35904 isfne4 37258 fnetr 37269 topfneec 37273 fnessref 37275 refssfne 37276 bj-epelb 38126 bj-idreseq 38226 phpreu 38670 sdomne0 44557 sdomne0d 44558 rn1st 46427 climf 46776 climf2 46818 iinfssc 50313 fuco21 50600 fucoid 50612 |
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