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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 5673 | . 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 5659 ↾ cres 5663 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-ext 2735 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-tru 1573 df-ex 1810 df-sb 2097 df-clab 2742 df-cleq 2755 df-clel 2838 df-v 3457 df-in 3912 df-ss 3922 df-res 5673 |
| This theorem is referenced by: dmresss 6010 rnresss 6016 relssres 6021 resexg 6026 iss 6037 mptss 6044 cnvcnvss 6192 relresfld 6277 funres 6578 funres11 6613 funcnvres 6614 2elresin 6656 fssres 6744 foimacnv 6838 frxp 8118 fnwelem 8123 tposss 8219 dftpos4 8237 smores 8335 smores2 8337 tfrlem15 8375 finresfin 9228 imafi 9271 fidomdm 9287 imafi2 9314 marypha1lem 9389 hartogslem1 9500 r0weon 9992 ackbij2lem3 10219 axdc3lem2 10430 dmct 10503 smobeth 10566 wunres 10711 vdwnnlem1 17050 symgsssg 19532 symgfisg 19533 psgnunilem5 19559 odf1o2 19638 gsumzres 19974 gsumzaddlem 19986 gsumzadd 19987 gsum2dlem2 20036 dprdfadd 20087 dprdres 20095 dprd2dlem1 20108 dprd2da 20109 lindfres 21973 opsrtoslem2 22207 txss12 23762 txbasval 23763 fmss 24103 ustneism 24381 trust 24386 isngp2 24754 equivcau 25459 metsscmetcld 25474 volf 25688 dvcnvrelem1 26176 pserdv 26592 dvlog 26816 dchrelbas2 27401 issubgr2 29622 subgrprop2 29624 uhgrspansubgr 29641 hlimadd 31545 hlimcaui 31588 hhssabloilem 31613 hhsst 31618 hhsssh2 31622 hhsscms 31630 occllem 31655 nlelchi 32413 hmopidmchi 32503 fnresin 32969 fressupp 33033 pfxrn2 33260 omsmon 34688 carsggect 34708 eulerpartlemmf 34765 funpartss 36436 brresi2 38391 bnd2lem 38462 idresssidinxp 38983 disjimres 39519 aks6d1c2 42917 eqresfnbd 43023 diophrw 43510 dnnumch2 43792 lmhmlnmsplit 43834 hbtlem6 43876 dfrcl2 44420 relexpaddss 44464 cotrclrcl 44488 frege131d 44510 resimass 45975 fourierdlem42 46883 fourierdlem80 46920 isubgredgss 48650 isubgrsubgr 48654 setrecsres 50500 |
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