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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 5643 | . 2 ⊢ (𝐴 ↾ 𝐵) = (𝐴 ∩ (𝐵 × V)) | |
| 2 | inss1 4177 | . 2 ⊢ (𝐴 ∩ (𝐵 × V)) ⊆ 𝐴 | |
| 3 | 1, 2 | eqsstri 3968 | 1 ⊢ (𝐴 ↾ 𝐵) ⊆ 𝐴 |
| Colors of variables: wff setvar class |
| Syntax hints: Vcvv 3429 ∩ cin 3888 ⊆ wss 3889 × cxp 5629 ↾ cres 5633 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-v 3431 df-in 3896 df-ss 3906 df-res 5643 |
| This theorem is referenced by: dmresss 5976 rnresss 5982 relssres 5987 resexg 5992 iss 6000 mptss 6007 relresfld 6240 funres 6540 funres11 6575 funcnvres 6576 2elresin 6619 fssres 6706 foimacnv 6797 frxp 8076 fnwelem 8081 tposss 8177 dftpos4 8195 smores 8292 smores2 8294 tfrlem15 8331 finresfin 9182 imafi 9225 fidomdm 9244 imafi2 9271 marypha1lem 9346 hartogslem1 9457 r0weon 9934 ackbij2lem3 10162 axdc3lem2 10373 dmct 10446 smobeth 10509 wunres 10654 vdwnnlem1 16966 symgsssg 19442 symgfisg 19443 psgnunilem5 19469 odf1o2 19548 gsumzres 19884 gsumzaddlem 19896 gsumzadd 19897 gsum2dlem2 19946 dprdfadd 19997 dprdres 20005 dprd2dlem1 20018 dprd2da 20019 lindfres 21803 opsrtoslem2 22034 txss12 23570 txbasval 23571 fmss 23911 ustneism 24189 trust 24194 isngp2 24562 equivcau 25267 metsscmetcld 25282 volf 25496 dvcnvrelem1 25984 pserdv 26394 dvlog 26615 dchrelbas2 27200 issubgr2 29341 subgrprop2 29343 uhgrspansubgr 29360 hlimadd 31264 hlimcaui 31307 hhssabloilem 31332 hhsst 31337 hhsssh2 31341 hhsscms 31349 occllem 31374 nlelchi 32132 hmopidmchi 32222 fnresin 32697 fressupp 32761 pfxrn2 33000 omsmon 34442 carsggect 34462 eulerpartlemmf 34519 funpartss 36126 brresi2 38041 bnd2lem 38112 idresssidinxp 38635 disjimres 39171 aks6d1c2 42569 eqresfnbd 42673 diophrw 43191 dnnumch2 43473 lmhmlnmsplit 43515 hbtlem6 43557 dfrcl2 44101 relexpaddss 44145 cotrclrcl 44169 frege131d 44191 resimass 45669 fourierdlem42 46577 fourierdlem80 46614 isubgredgss 48341 isubgrsubgr 48345 setrecsres 50177 |
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