![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > ssexg | Unicode version |
Description: The subset of a set is also a set. Exercise 3 of [TakeutiZaring] p. 22 (generalized). (Contributed by NM, 14-Aug-1994.) |
Ref | Expression |
---|---|
ssexg |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sseq2 3126 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
2 | 1 | imbi1d 230 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
3 | vex 2692 |
. . . 4
![]() ![]() ![]() ![]() | |
4 | 3 | ssex 4073 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
5 | 2, 4 | vtoclg 2749 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
6 | 5 | impcom 124 |
1
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() |
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 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-v 2691 df-in 3082 df-ss 3089 |
This theorem is referenced by: ssexd 4076 difexg 4077 rabexg 4079 elssabg 4081 elpw2g 4089 abssexg 4114 snexg 4116 sess1 4267 sess2 4268 trsuc 4352 unexb 4371 abnexg 4375 uniexb 4402 xpexg 4661 riinint 4808 dmexg 4811 rnexg 4812 resexg 4867 resiexg 4872 imaexg 4901 exse2 4921 cnvexg 5084 coexg 5091 fabexg 5318 f1oabexg 5387 relrnfvex 5447 fvexg 5448 sefvex 5450 mptfvex 5514 mptexg 5653 ofres 6004 resfunexgALT 6016 cofunexg 6017 fnexALT 6019 f1dmex 6022 oprabexd 6033 mpoexxg 6116 tposexg 6163 frecabex 6303 erex 6461 mapex 6556 pmvalg 6561 elpmg 6566 elmapssres 6575 pmss12g 6577 ixpexgg 6624 ssdomg 6680 fiprc 6717 fival 6866 iccen 9819 shftfvalg 10622 shftfval 10625 toponsspwpwg 12228 tgval 12257 tgvalex 12258 eltg 12260 eltg2 12261 tgss 12271 basgen2 12289 bastop1 12291 topnex 12294 resttopon 12379 restabs 12383 lmfval 12400 cnrest 12443 txss12 12474 metrest 12714 dvbss 12862 dvcnp2cntop 12871 dvaddxxbr 12873 dvmulxxbr 12874 |
Copyright terms: Public domain | W3C validator |