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| Mirrors > Home > MPE Home > Th. List > abssdv | Structured version Visualization version GIF version | ||
| Description: Deduction of abstraction subclass from implication. (Contributed by NM, 20-Jan-2006.) (Proof shortened by SN, 22-Dec-2024.) |
| Ref | Expression |
|---|---|
| abssdv.1 | ⊢ (𝜑 → (𝜓 → 𝑥 ∈ 𝐴)) |
| Ref | Expression |
|---|---|
| abssdv | ⊢ (𝜑 → {𝑥 ∣ 𝜓} ⊆ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | abssdv.1 | . . 3 ⊢ (𝜑 → (𝜓 → 𝑥 ∈ 𝐴)) | |
| 2 | 1 | ss2abdv 4018 | . 2 ⊢ (𝜑 → {𝑥 ∣ 𝜓} ⊆ {𝑥 ∣ 𝑥 ∈ 𝐴}) |
| 3 | abid1 2898 | . 2 ⊢ 𝐴 = {𝑥 ∣ 𝑥 ∈ 𝐴} | |
| 4 | 2, 3 | sseqtrrdi 3977 | 1 ⊢ (𝜑 → {𝑥 ∣ 𝜓} ⊆ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2142 {cab 2740 ⊆ wss 3904 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-ext 2734 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-tru 1563 df-ex 1800 df-sb 2091 df-clab 2741 df-cleq 2754 df-clel 2837 df-ss 3921 |
| This theorem is referenced by: dfopif 4828 abexd 5281 opabssxpd 5694 fmpt 7091 fabexd 7918 eroprf 8797 cfslb2n 10225 axdc2lem 10405 rankcf 10735 genpv 10957 genpdm 10960 fimaxre3 12138 supadd 12160 supmul 12164 hashf1lem2 14469 mertenslem2 15915 4sqlem11 16991 lss1d 21030 lspsn 21069 lpval 23199 lpsscls 23201 ptuni2 23636 ptbasfi 23641 prdstopn 23688 xkopt 23715 tgpconncompeqg 24172 metrest 24584 mbfeqalem1 25703 limcfval 25934 nosupno 27767 nosupbday 27769 noinfno 27782 noinfbday 27784 addsproplem2 28063 addsuniflem 28094 addbdaylem 28110 negsid 28134 mulsproplem9 28217 sltmuls1 28240 sltmuls2 28241 precsexlem8 28307 precsexlem11 28310 onaddscl 28370 onmulscl 28371 recut 28587 elreno2 28588 nmosetre 30967 nmopsetretALT 32066 nmfnsetre 32080 sigaclcuni 34415 bnj849 35220 vonf1oonfo 35458 deranglem 35516 derangsn 35520 liness 36495 nmulprop 36540 mblfinlem3 38158 ismblfin 38160 itg2addnclem 38170 areacirclem2 38208 sdclem2 38241 sdclem1 38242 ismtyval 38299 heibor1lem 38308 heibor1 38309 pmapglbx 40393 eldiophb 43338 hbtlem2 43701 oaun3lem1 43951 oaun3lem2 43952 upbdrech 45884 hoidmvlelem1 47169 |
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