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Mirrors > Home > MPE Home > Th. List > abssi | Structured version Visualization version GIF version |
Description: Inference of abstraction subclass from implication. (Contributed by NM, 20-Jan-2006.) |
Ref | Expression |
---|---|
abssi.1 | ⊢ (𝜑 → 𝑥 ∈ 𝐴) |
Ref | Expression |
---|---|
abssi | ⊢ {𝑥 ∣ 𝜑} ⊆ 𝐴 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | abssi.1 | . . 3 ⊢ (𝜑 → 𝑥 ∈ 𝐴) | |
2 | 1 | ss2abi 3637 | . 2 ⊢ {𝑥 ∣ 𝜑} ⊆ {𝑥 ∣ 𝑥 ∈ 𝐴} |
3 | abid2 2732 | . 2 ⊢ {𝑥 ∣ 𝑥 ∈ 𝐴} = 𝐴 | |
4 | 2, 3 | sseqtri 3600 | 1 ⊢ {𝑥 ∣ 𝜑} ⊆ 𝐴 |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 1977 {cab 2596 ⊆ wss 3540 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-in 3547 df-ss 3554 |
This theorem is referenced by: ssab2 3649 intab 4442 opabss 4646 relopabiALT 5168 exse2 6998 opiota 7118 tfrlem8 7367 fiprc 7924 fival 8201 hartogslem1 8330 tz9.12lem1 8533 rankuni 8609 scott0 8632 r0weon 8718 alephval3 8816 aceq3lem 8826 dfac5lem4 8832 dfac2 8836 cff 8953 cfsuc 8962 cff1 8963 cflim2 8968 cfss 8970 axdc3lem 9155 axdclem 9224 gruina 9519 nqpr 9715 infcvgaux1i 14428 4sqlem1 15490 sscpwex 16298 symgval 17622 cssval 19845 islocfin 21130 hauspwpwf1 21601 itg2lcl 23300 2sqlem7 24949 isismt 25229 nmcexi 28269 dispcmp 29254 cnre2csqima 29285 mppspstlem 30722 colinearex 31337 bj-topnex 32247 itg2addnclem 32631 itg2addnc 32634 eldiophb 36338 |
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