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Mirrors > Home > MPE Home > Th. List > fssdm | Structured version Visualization version GIF version |
Description: Expressing that a class is a subclass of the domain of a function expressed in maps-to notation, semi-deduction form. (Contributed by AV, 21-Aug-2022.) |
Ref | Expression |
---|---|
fssdm.d | ⊢ 𝐷 ⊆ dom 𝐹 |
fssdm.f | ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) |
Ref | Expression |
---|---|
fssdm | ⊢ (𝜑 → 𝐷 ⊆ 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fssdm.d | . 2 ⊢ 𝐷 ⊆ dom 𝐹 | |
2 | fssdm.f | . . 3 ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) | |
3 | 2 | fdmd 6497 | . 2 ⊢ (𝜑 → dom 𝐹 = 𝐴) |
4 | 1, 3 | sseqtrid 3967 | 1 ⊢ (𝜑 → 𝐷 ⊆ 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ⊆ wss 3881 dom cdm 5519 ⟶wf 6320 |
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 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-sb 2070 df-clab 2777 df-cleq 2791 df-clel 2870 df-v 3443 df-in 3888 df-ss 3898 df-fn 6327 df-f 6328 |
This theorem is referenced by: fisuppfi 8825 wemapso 8999 wemapso2lem 9000 cantnfcl 9114 cantnfle 9118 cantnflt 9119 cantnff 9121 cantnfp1lem3 9127 cantnflem1b 9133 cantnflem1 9136 cantnflem3 9138 cnfcomlem 9146 cnfcom 9147 cnfcom3lem 9150 cnfcom3 9151 fin1a2lem7 9817 isercolllem2 15014 isercolllem3 15015 fsumss 15074 fprodss 15294 vdwlem1 16307 vdwlem5 16311 vdwlem6 16312 ghmpreima 18372 pmtrfconj 18586 gsumval3lem1 19018 gsumval3lem2 19019 gsumval3 19020 gsumzres 19022 gsumzcl2 19023 gsumzf1o 19025 gsumzmhm 19050 gsumzoppg 19057 gsum2d 19085 dpjidcl 19173 lmhmpreima 19813 gsumfsum 20158 regsumsupp 20311 frlmlbs 20486 mplcoe1 20705 mplcoe5 20708 psr1baslem 20814 mdetdiaglem 21203 cnclima 21873 iscncl 21874 cnclsi 21877 txcnmpt 22229 qtopval2 22301 qtopcn 22319 rnelfmlem 22557 fmfnfmlem4 22562 clssubg 22714 tgphaus 22722 tsmsgsum 22744 xmeter 23040 metustss 23158 metustexhalf 23163 restmetu 23177 rrxcph 23996 rrxsuppss 24007 mdegfval 24663 mdegleb 24665 mdegldg 24667 deg1mul3le 24717 plyeq0lem 24807 dgrcl 24830 dgrub 24831 dgrlb 24833 vieta1lem1 24906 suppovss 30443 pwrssmgc 30706 gsumhashmul 30741 rhmpreimaidl 31011 elrspunidl 31014 dimkerim 31111 fedgmullem1 31113 carsggect 31686 sibfof 31708 eulerpartlemsv2 31726 eulerpartlemsf 31727 eulerpartlemt 31739 eulerpartlemgu 31745 eulerpartlemgs2 31748 cvmliftmolem1 32641 cvmlift3lem6 32684 itg2addnclem 35108 keridl 35470 ismrcd1 39639 istopclsd 39641 pwfi2f1o 40040 sge0f1o 43021 smfsuplem1 43442 |
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