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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 5631 | . 2 ⊢ (𝐴 ↾ 𝐵) = (𝐴 ∩ (𝐵 × V)) | |
| 2 | inss1 4166 | . 2 ⊢ (𝐴 ∩ (𝐵 × V)) ⊆ 𝐴 | |
| 3 | 1, 2 | eqsstri 3961 | 1 ⊢ (𝐴 ↾ 𝐵) ⊆ 𝐴 |
| Colors of variables: wff setvar class |
| Syntax hints: Vcvv 3431 ∩ cin 3882 ⊆ wss 3883 × cxp 5617 ↾ cres 5621 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2711 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-tru 1550 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-clel 2814 df-v 3433 df-in 3890 df-ss 3900 df-res 5631 |
| This theorem is referenced by: dmresss 5964 rnresss 5970 relssres 5975 resexg 5980 iss 5988 mptss 5995 relresfld 6228 funres 6528 funres11 6563 funcnvres 6564 2elresin 6607 fssres 6694 foimacnv 6785 frxp 8067 fnwelem 8072 tposss 8168 dftpos4 8186 smores 8283 smores2 8285 tfrlem15 8322 finresfin 9173 imafi 9216 fidomdm 9235 imafi2 9262 marypha1lem 9337 hartogslem1 9448 r0weon 9926 ackbij2lem3 10154 axdc3lem2 10365 dmct 10438 smobeth 10501 wunres 10646 vdwnnlem1 16958 symgsssg 19434 symgfisg 19435 psgnunilem5 19461 odf1o2 19540 gsumzres 19876 gsumzaddlem 19888 gsumzadd 19889 gsum2dlem2 19938 dprdfadd 19989 dprdres 19997 dprd2dlem1 20010 dprd2da 20011 lindfres 21799 opsrtoslem2 22033 txss12 23589 txbasval 23590 fmss 23930 ustneism 24208 trust 24213 isngp2 24581 equivcau 25286 metsscmetcld 25301 volf 25515 dvcnvrelem1 26003 pserdv 26413 dvlog 26634 dchrelbas2 27219 issubgr2 29360 subgrprop2 29362 uhgrspansubgr 29379 hlimadd 31283 hlimcaui 31326 hhssabloilem 31351 hhsst 31356 hhsssh2 31360 hhsscms 31368 occllem 31393 nlelchi 32151 hmopidmchi 32241 fnresin 32717 fressupp 32781 pfxrn2 33020 omsmon 34491 carsggect 34511 eulerpartlemmf 34568 funpartss 36181 brresi2 38096 bnd2lem 38167 idresssidinxp 38690 disjimres 39226 aks6d1c2 42624 eqresfnbd 42728 diophrw 43217 dnnumch2 43499 lmhmlnmsplit 43541 hbtlem6 43583 dfrcl2 44127 relexpaddss 44171 cotrclrcl 44195 frege131d 44217 resimass 45692 fourierdlem42 46600 fourierdlem80 46637 isubgredgss 48364 isubgrsubgr 48368 setrecsres 50200 |
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