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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 3993 | . 2 ⊢ (𝜑 → {𝑥 ∣ 𝜓} ⊆ {𝑥 ∣ 𝑥 ∈ 𝐴}) |
| 3 | abid1 2900 | . 2 ⊢ 𝐴 = {𝑥 ∣ 𝑥 ∈ 𝐴} | |
| 4 | 2, 3 | sseqtrrdi 3954 | 1 ⊢ (𝜑 → {𝑥 ∣ 𝜓} ⊆ 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2147 {cab 2741 ⊆ wss 3900 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-ss 3901 |
| This theorem is used by: dfopif 4842 abexd 5294 opabssxpd 5705 fmpt 7142 fabexd 7983 eroprf 8874 cfslb2n 10385 axdc2lem 10565 rankcf 10901 genpv 11123 genpdm 11126 fimaxre3 12303 supadd 12325 supmul 12329 hashf1lem2 14642 mertenslem2 16098 4sqlem11 17177 lss1d 21289 lspsn 21328 lpval 23512 lpsscls 23514 ptuni2 23950 ptbasfi 23955 prdstopn 24002 xkopt 24029 tgpconncompeqg 24486 metrest 24898 mbfeqalem1 26017 limcfval 26247 nosupno 28117 nosupbday 28119 noinfno 28132 noinfbday 28134 addsproplem2 28413 addsuniflem 28444 addbdaylem 28460 negsid 28484 mulsproplem9 28567 sltmuls1 28590 sltmuls2 28591 precsexlem8 28657 precsexlem11 28660 onaddscl 28720 onmulscl 28721 recut 28937 elreno2 28938 nmosetre 31423 nmopsetretALT 32522 nmfnsetre 32536 sigaclcuni 34861 bnj849 35666 vonf1oonfo 36090 deranglem 36139 derangsn 36143 liness 37125 nmulprop 37154 mblfinlem3 38845 ismblfin 38847 itg2addnclem 38857 areacirclem2 38895 sdclem2 38942 sdclem1 38943 ismtyval 39000 heibor1lem 39009 heibor1 39010 pmapglbx 41092 eldiophb 44034 hbtlem2 44391 oaun3lem1 44637 oaun3lem2 44638 mpoexwd 46187 upbdrech 46594 hoidmvlelem1 47878 |
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