Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > relelfvdm | Unicode version |
Description: If a function value has a member, the argument belongs to the domain. (Contributed by Jim Kingdon, 22-Jan-2019.) |
Ref | Expression |
---|---|
relelfvdm |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elfv 5478 | . . . . . 6 | |
2 | exsimpr 1605 | . . . . . 6 | |
3 | 1, 2 | sylbi 120 | . . . . 5 |
4 | equsb1 1772 | . . . . . . . 8 | |
5 | spsbbi 1831 | . . . . . . . 8 | |
6 | 4, 5 | mpbiri 167 | . . . . . . 7 |
7 | nfv 1515 | . . . . . . . 8 | |
8 | breq2 3980 | . . . . . . . 8 | |
9 | 7, 8 | sbie 1778 | . . . . . . 7 |
10 | 6, 9 | sylib 121 | . . . . . 6 |
11 | 10 | eximi 1587 | . . . . 5 |
12 | 3, 11 | syl 14 | . . . 4 |
13 | 12 | anim2i 340 | . . 3 |
14 | 19.42v 1893 | . . 3 | |
15 | 13, 14 | sylibr 133 | . 2 |
16 | releldm 4833 | . . 3 | |
17 | 16 | exlimiv 1585 | . 2 |
18 | 15, 17 | syl 14 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wal 1340 wex 1479 wsb 1749 wcel 2135 class class class wbr 3976 cdm 4598 wrel 4603 cfv 5182 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-nf 1448 df-sb 1750 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ral 2447 df-rex 2448 df-v 2723 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-br 3977 df-opab 4038 df-xp 4604 df-rel 4605 df-dm 4608 df-iota 5147 df-fv 5190 |
This theorem is referenced by: mptrcl 5562 elfvmptrab1 5574 elmpocl 6030 oprssdmm 6131 mpoxopn0yelv 6198 eluzel2 9462 hashinfom 10680 istopon 12552 istps 12571 topontopn 12576 eltg4i 12596 eltg3 12598 tg1 12600 tg2 12601 tgclb 12606 cldrcl 12643 neiss2 12683 lmrcl 12732 cnprcl2k 12747 metflem 12890 xmetf 12891 ismet2 12895 xmeteq0 12900 xmettri2 12902 xmetpsmet 12910 xmetres2 12920 blfvalps 12926 blex 12928 blvalps 12929 blval 12930 blfps 12950 blf 12951 mopnval 12983 isxms2 12993 comet 13040 |
Copyright terms: Public domain | W3C validator |