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| Mirrors > Home > MPE Home > Th. List > brrelex1i | Structured version Visualization version GIF version | ||
| Description: The first argument of a binary relation exists. (An artifact of our ordered pair definition.) (Contributed by NM, 4-Jun-1998.) |
| Ref | Expression |
|---|---|
| brrelexi.1 | ⊢ Rel 𝑅 |
| Ref | Expression |
|---|---|
| brrelex1i | ⊢ (𝐴𝑅𝐵 → 𝐴 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | brrelexi.1 | . 2 ⊢ Rel 𝑅 | |
| 2 | brrelex1 5708 | . 2 ⊢ ((Rel 𝑅 ∧ 𝐴𝑅𝐵) → 𝐴 ∈ V) | |
| 3 | 1, 2 | mpan 703 | 1 ⊢ (𝐴𝑅𝐵 → 𝐴 ∈ 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: nprrel 5714 opeliunxp2 5820 ideqg 5834 issetid 5837 dffv2 6991 brfvopabrbr 7001 brrpssg 7751 opeliunxp2f 8241 brtpos2 8263 brdomg 8999 ctex 9004 isfi 9016 domssr 9040 domdifsn 9093 xpdom2 9105 xpdom1g 9107 sbth 9130 sdomirr 9147 sdomdif 9158 fodomr 9161 pwdom 9162 xpen 9173 pwen 9183 sbthfi 9228 sucdom2 9232 fineqv 9272 infsdomnn 9307 relprcnfsupp 9370 fsuppssov1 9389 fsuppunbi 9394 mapfien2 9414 harword 9570 brwdom 9574 domwdom 9581 brwdom3i 9590 unwdomg 9591 xpwdomg 9592 infdifsn 9671 ac10ct 10126 inffien 10155 djuen 10261 djudom2 10275 djufi 10278 cdainflem 10279 djulepw 10284 infdjuabs 10296 infunabs 10297 infmap2 10308 cfslb2n 10359 fin4i 10389 isfin5 10390 isfin6 10391 fin4en1 10400 isfin4p1 10406 isfin32i 10456 fin45 10483 fin56 10484 fin67 10486 hsmexlem1 10517 hsmexlem3 10519 axcc3 10529 ttukeylem1 10600 brdom3 10620 iundom2g 10637 iundom 10639 gchi 10722 engch 10726 gchdomtri 10727 fpwwe2lem5 10733 fpwwe2lem6 10734 fpwwe2lem8 10736 gchdjuidm 10766 gchpwdom 10768 prcdnq 11091 reexALT 13125 hasheni 14505 hashdomi 14537 climcl 15681 climi 15692 climrlim2 15729 climrecl 15765 climge0 15766 iseralt 15867 climfsum 16002 structex 17343 issubc 18025 pmtrfv 19681 dprdval 20234 frgpcyg 21894 lindff 22136 lindfind 22137 f1lindf 22143 lindfmm 22148 lsslindf 22151 lbslcic 22162 psrbaglesupp 22245 hauspwdom 23835 refbas 23844 refssex 23845 reftr 23848 refun0 23849 ovoliunnul 25843 dvle 26342 cyclnspth 30404 hlimi 31805 gsumhashmul 33684 extdgval 34341 finextfldext 34352 kardenir 35900 karddom 35903 kardsdom 35904 usgrgt2cycl 36023 brsset 36784 brbigcup 36793 elfix2 36799 brcolinear2 36956 isfne 37260 refssfne 37279 bj-epelg 38128 bj-ideqb 38226 bj-opelidb1ALT 38233 ovoliunnfl 38726 voliunnfl 38728 volsupnfl 38729 brabg2 38797 heiborlem4 38894 isrngo 38977 isdivrngo 39030 brssr 39659 issetssr 39661 fphpd 43969 ctbnfien 43971 sdomne0 44560 climd 46827 climuzlem 46898 rlimdmafv 48392 rlimdmafv2 48473 imasubc 50412 imassc 50414 imaid 50415 imaf1co 50416 imasubc3 50417 fuco112 50596 fuco111 50597 fuco21 50603 fucoid 50615 |
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