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| Mirrors > Home > MPE Home > Th. List > resss | Structured version Visualization version GIF version | ||
| Description: A class includes its restriction. Exercise 15 of [TakeutiZaring] p. 25. (Contributed by NM, 2-Aug-1994.) |
| Ref | Expression |
|---|---|
| resss | ⊢ (𝐴 ↾ 𝐵) ⊆ 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-res 5660 | . 2 ⊢ (𝐴 ↾ 𝐵) = (𝐴 ∩ (𝐵 × V)) | |
| 2 | inss1 4189 | . 2 ⊢ (𝐴 ∩ (𝐵 × V)) ⊆ 𝐴 | |
| 3 | 1, 2 | eqsstri 3983 | 1 ⊢ (𝐴 ↾ 𝐵) ⊆ 𝐴 |
| Colors of variables: wff setvar class |
| Syntax hints: Vcvv 3455 ∩ cin 3904 ⊆ wss 3905 × cxp 5646 ↾ cres 5650 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1816 ax-4 1830 ax-5 1931 ax-6 1988 ax-7 2029 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-tru 1564 df-ex 1801 df-sb 2092 df-clab 2742 df-cleq 2755 df-clel 2838 df-v 3457 df-in 3912 df-ss 3922 df-res 5660 |
| This theorem is referenced by: dmresss 5998 rnresss 6004 relssres 6009 resexg 6014 iss 6025 mptss 6032 cnvcnvss 6181 relresfld 6264 funres 6564 funres11 6599 funcnvres 6600 2elresin 6643 fssres 6731 foimacnv 6825 frxp 8107 fnwelem 8112 tposss 8208 dftpos4 8226 smores 8324 smores2 8326 tfrlem15 8364 finresfin 9217 imafi 9260 fidomdm 9278 imafi2 9305 marypha1lem 9380 hartogslem1 9491 r0weon 9969 ackbij2lem3 10197 axdc3lem2 10409 dmct 10482 smobeth 10545 wunres 10690 vdwnnlem1 17032 symgsssg 19508 symgfisg 19509 psgnunilem5 19535 odf1o2 19614 gsumzres 19950 gsumzaddlem 19962 gsumzadd 19963 gsum2dlem2 20012 dprdfadd 20063 dprdres 20071 dprd2dlem1 20084 dprd2da 20085 lindfres 21876 opsrtoslem2 22110 txss12 23666 txbasval 23667 fmss 24007 ustneism 24285 trust 24290 isngp2 24658 equivcau 25363 metsscmetcld 25378 volf 25592 dvcnvrelem1 26080 pserdv 26493 dvlog 26717 dchrelbas2 27302 issubgr2 29474 subgrprop2 29476 uhgrspansubgr 29493 hlimadd 31397 hlimcaui 31440 hhssabloilem 31465 hhsst 31470 hhsssh2 31474 hhsscms 31482 occllem 31507 nlelchi 32265 hmopidmchi 32355 fnresin 32827 fressupp 32891 pfxrn2 33119 omsmon 34596 carsggect 34616 eulerpartlemmf 34673 funpartss 36295 brresi2 38220 bnd2lem 38291 idresssidinxp 38814 disjimres 39350 aks6d1c2 42748 eqresfnbd 42852 diophrw 43341 dnnumch2 43623 lmhmlnmsplit 43665 hbtlem6 43707 dfrcl2 44251 relexpaddss 44295 cotrclrcl 44319 frege131d 44341 resimass 45816 fourierdlem42 46724 fourierdlem80 46761 isubgredgss 48488 isubgrsubgr 48492 setrecsres 50324 |
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