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Related theorems GIF version |
| Description: Deduction rule based on subclass definition. |
| Ref | Expression |
|---|---|
| ssrdv.1 | ⊢ (φ → (x ∈ A → x ∈ B)) |
| Ref | Expression |
|---|---|
| ssrdv | ⊢ (φ → A ⊆ B) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ssrdv.1 | . . 3 ⊢ (φ → (x ∈ A → x ∈ B)) | |
| 2 | 1 | 19.21aiv 1324 | . 2 ⊢ (φ → ∀x(x ∈ A → x ∈ B)) |
| 3 | dfss2 2110 | . 2 ⊢ (A ⊆ B ↔ ∀x(x ∈ A → x ∈ B)) | |
| 4 | 2, 3 | sylibr 198 | 1 ⊢ (φ → A ⊆ B) |
| Colors of variables: wff set class |
| Syntax hints: → wi 3 ∀wal 990 ∈ wcel 994 ⊆ wss 2099 |
| This theorem is referenced by: sscon 2223 ssdif 2224 difsn 2528 prss 2536 tpss 2541 intss1 2615 intmin 2620 intssuni 2622 ss2iun 2645 ssiun2 2661 sspwb 2835 pwssun 2905 tron 2998 tz7.7 3001 ssorduni 3147 onint 3152 limsssuc 3204 limuni3 3206 limomss 3224 relop 3365 dmss 3401 ssrnres 3566 chfnrn 3916 dff3 3931 fo1stres 4156 fo2ndres 4157 onfununi 4209 tz7.48-1 4257 tz7.49 4260 oaass 4331 ss2ixp 4495 mapenlem2 4637 pssnn 4681 inf3lemd 4757 inf3lem1 4758 inf3lem6 4763 r1tr 4800 zorn2lem4 4937 zorn2lem5 4938 unxpdomlem 4993 carduni 5008 genpss 5261 distrlem1pr 5281 distrlem5pr 5285 ltexprlem2 5297 ltexprlem6 5301 ltexprlem7 5302 reclem3pr 5312 reclem4pr 5313 suppsrlem 5375 suprelem 5413 iccssre 6523 uzss 6558 infxpidmlem7 7770 infxpidmlem8 7771 bastg 7834 tgtop 7840 tgss 7848 tgss2 7849 basgen2 7851 clslp 7958 cnsscnp 7982 cncnplem2 7985 ssbl 8065 blssopn 8077 unirnbl 8085 metcnss 8109 cmsss 8208 grplactf1o 8339 ubthlem2 8788 psdmrn 8910 ococss 9442 shsub1 9564 shlessi 9623 shmodsi 9638 spansnss 9770 spanpr 9779 spansnm0i 9873 pjjsi 9923 sumdmdii 10624 sumdmdlem 10627 sumdmdlem2 10628 cdj3lem1 10643 uninqs 10730 clsrebb 10993 nsn 11017 rdmob 11202 rcmob 11203 xpss1 11403 xpss2 11404 ordtypelem4 11430 ordtypelem7 11433 hartog 11436 onsdom 11437 omsubindss 11449 subntr 11482 compsublem 11487 compsub 11488 cptclsscpt 11489 hscptsscld 11491 cncomp 11494 alexsublem3 11498 subtopmetlem 11505 reconnlem1 11507 iccconn 11514 topfneec 11562 fnessref 11564 locfincomp 11575 comppfsc 11578 neibastop2lem1 11580 neibastop2lem2 11581 fnejoin1 11591 fnejoin2 11592 ist1-3 11604 fgss 11634 fbssfg 11635 fgbas 11636 fgid 11637 fgmin 11639 fbfgss 11640 isufil2 11650 filufint 11659 uffixfr 11660 ufcondr 11666 flimopn 11679 cnpfillim 11686 rnelfm 11699 fmfnfmlem2 11701 fmfnfmlem4 11703 sfcls 11716 filclus 11717 flimfcls 11725 uffclsflim 11728 tailmap 11759 tailuni 11761 tailfb 11762 filnet 11768 ssga 11777 gapm 11784 inficl 11849 fzfi 11864 lpss2 11906 metsstop 11909 blhalf 11911 iccss 11920 tx1cn 11976 tx2cn 11977 sstotbnd 11992 totbndss 11993 ismtybndlem 12008 heiborlem11 12021 recms 12066 rrntotbnd 12078 iccbnd 12082 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-10 1002 ax-12 1004 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 |
| This theorem depends on definitions: df-bi 145 df-an 223 df-ex 1017 df-sb 1209 df-clab 1506 df-cleq 1511 df-clel 1514 df-in 2103 df-ss 2105 |