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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 4013 | . 2 ⊢ (𝜑 → {𝑥 ∣ 𝜓} ⊆ {𝑥 ∣ 𝑥 ∈ 𝐴}) |
| 3 | abid1 2897 | . 2 ⊢ 𝐴 = {𝑥 ∣ 𝑥 ∈ 𝐴} | |
| 4 | 2, 3 | sseqtrrdi 3972 | 1 ⊢ (𝜑 → {𝑥 ∣ 𝜓} ⊆ 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 {cab 2739 ⊆ wss 3899 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-ss 3916 |
| This theorem is used by: dfopif 4830 abexd 5287 opabssxpd 5698 fmpt 7110 fabexd 7949 eroprf 8836 cfslb2n 10346 axdc2lem 10526 rankcf 10862 genpv 11084 genpdm 11087 fimaxre3 12263 supadd 12285 supmul 12289 hashf1lem2 14601 mertenslem2 16054 4sqlem11 17133 lss1d 21238 lspsn 21277 lpval 23457 lpsscls 23459 ptuni2 23895 ptbasfi 23900 prdstopn 23947 xkopt 23974 tgpconncompeqg 24431 metrest 24843 mbfeqalem1 25962 limcfval 26192 nosupno 28060 nosupbday 28062 noinfno 28075 noinfbday 28077 addsproplem2 28356 addsuniflem 28387 addbdaylem 28403 negsid 28427 mulsproplem9 28510 sltmuls1 28533 sltmuls2 28534 precsexlem8 28600 precsexlem11 28603 onaddscl 28663 onmulscl 28664 recut 28880 elreno2 28881 nmosetre 31366 nmopsetretALT 32465 nmfnsetre 32479 sigaclcuni 34750 bnj849 35555 vonf1oonfo 35898 deranglem 35931 derangsn 35935 liness 36910 nmulprop 36939 mblfinlem3 38577 ismblfin 38579 itg2addnclem 38589 areacirclem2 38627 sdclem2 38676 sdclem1 38677 ismtyval 38734 heibor1lem 38743 heibor1 38744 pmapglbx 40826 eldiophb 43767 hbtlem2 44125 oaun3lem1 44375 oaun3lem2 44376 upbdrech 46320 hoidmvlelem1 47604 |
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