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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 5644 | . 2 ⊢ (𝐴 ↾ 𝐵) = (𝐴 ∩ (𝐵 × V)) | |
| 2 | inss1 4191 | . 2 ⊢ (𝐴 ∩ (𝐵 × V)) ⊆ 𝐴 | |
| 3 | 1, 2 | eqsstri 3982 | 1 ⊢ (𝐴 ↾ 𝐵) ⊆ 𝐴 |
| Colors of variables: wff setvar class |
| Syntax hints: Vcvv 3442 ∩ cin 3902 ⊆ wss 3903 × cxp 5630 ↾ cres 5634 |
| 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 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-v 3444 df-in 3910 df-ss 3920 df-res 5644 |
| This theorem is referenced by: dmresss 5978 rnresss 5984 relssres 5989 resexg 5994 iss 6002 mptss 6009 relresfld 6242 funres 6542 funres11 6577 funcnvres 6578 2elresin 6621 fssres 6708 foimacnv 6799 frxp 8078 fnwelem 8083 tposss 8179 dftpos4 8197 smores 8294 smores2 8296 tfrlem15 8333 finresfin 9184 imafi 9227 fidomdm 9246 imafi2 9273 marypha1lem 9348 hartogslem1 9459 r0weon 9934 ackbij2lem3 10162 axdc3lem2 10373 dmct 10446 smobeth 10509 wunres 10654 vdwnnlem1 16935 symgsssg 19411 symgfisg 19412 psgnunilem5 19438 odf1o2 19517 gsumzres 19853 gsumzaddlem 19865 gsumzadd 19866 gsum2dlem2 19915 dprdfadd 19966 dprdres 19974 dprd2dlem1 19987 dprd2da 19988 lindfres 21793 opsrtoslem2 22026 txss12 23564 txbasval 23565 fmss 23905 ustneism 24183 trust 24188 isngp2 24556 equivcau 25271 metsscmetcld 25286 volf 25501 dvcnvrelem1 25993 pserdv 26410 dvlog 26631 dchrelbas2 27219 issubgr2 29361 subgrprop2 29363 uhgrspansubgr 29380 hlimadd 31285 hlimcaui 31328 hhssabloilem 31353 hhsst 31358 hhsssh2 31362 hhsscms 31370 occllem 31395 nlelchi 32153 hmopidmchi 32243 fnresin 32718 fressupp 32782 pfxrn2 33037 omsmon 34480 carsggect 34500 eulerpartlemmf 34557 funpartss 36164 brresi2 37975 bnd2lem 38046 idresssidinxp 38569 disjimres 39105 aks6d1c2 42504 eqresfnbd 42608 diophrw 43120 dnnumch2 43406 lmhmlnmsplit 43448 hbtlem6 43490 dfrcl2 44034 relexpaddss 44078 cotrclrcl 44102 frege131d 44124 resimass 45602 fourierdlem42 46511 fourierdlem80 46548 isubgredgss 48229 isubgrsubgr 48233 setrecsres 50065 |
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