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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 5126 | . 2 ⊢ (𝐴 ↾ 𝐵) = (𝐴 ∩ (𝐵 × V)) | |
2 | inss1 3833 | . 2 ⊢ (𝐴 ∩ (𝐵 × V)) ⊆ 𝐴 | |
3 | 1, 2 | eqsstri 3635 | 1 ⊢ (𝐴 ↾ 𝐵) ⊆ 𝐴 |
Colors of variables: wff setvar class |
Syntax hints: Vcvv 3200 ∩ cin 3573 ⊆ wss 3574 × cxp 5112 ↾ cres 5116 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-v 3202 df-in 3581 df-ss 3588 df-res 5126 |
This theorem is referenced by: relssres 5437 resexg 5442 iss 5447 mptss 5454 relresfld 5662 funres 5929 funres11 5966 funcnvres 5967 2elresin 6002 fssres 6070 foimacnv 6154 frxp 7287 fnwelem 7292 tposss 7353 dftpos4 7371 smores 7449 smores2 7451 tfrlem15 7488 finresfin 8186 fidomdm 8243 imafi 8259 marypha1lem 8339 hartogslem1 8447 r0weon 8835 ackbij2lem3 9063 axdc3lem2 9273 dmct 9346 smobeth 9408 wunres 9553 vdwnnlem1 15699 symgsssg 17887 symgfisg 17888 psgnunilem5 17914 odf1o2 17988 gsumzres 18310 gsumzaddlem 18321 gsumzadd 18322 gsum2dlem2 18370 dprdfadd 18419 dprdres 18427 dprd2dlem1 18440 dprd2da 18441 opsrtoslem2 19485 lindfres 20162 txss12 21408 txbasval 21409 fmss 21750 ustneism 22027 trust 22033 isngp2 22401 equivcau 23098 cmetss 23113 volf 23297 dvcnvrelem1 23780 tdeglem4 23820 pserdv 24183 dvlog 24397 dchrelbas2 24962 issubgr2 26164 subgrprop2 26166 uhgrspansubgr 26183 hlimadd 28050 hlimcaui 28093 hhssabloilem 28118 hhsst 28123 hhsssh2 28127 hhsscms 28136 occllem 28162 nlelchi 28920 hmopidmchi 29010 fnresin 29430 imafi2 29489 omsmon 30360 carsggect 30380 eulerpartlemmf 30437 funpartss 32051 brresi 33513 bnd2lem 33590 idresssidinxp 34079 idinxpres 34088 diophrw 37322 dnnumch2 37615 lmhmlnmsplit 37657 hbtlem6 37699 dfrcl2 37966 relexpaddss 38010 cotrclrcl 38034 frege131d 38056 rnresss 39365 resimass 39449 fourierdlem42 40366 fourierdlem80 40403 |
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