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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 3990 | . 2 ⊢ {𝑥 ∣ 𝜑} ⊆ {𝑥 ∣ 𝑥 ∈ 𝐴} |
| 3 | abid2 2897 | . 2 ⊢ {𝑥 ∣ 𝑥 ∈ 𝐴} = 𝐴 | |
| 4 | 2, 3 | sseqtri 3957 | 1 ⊢ {𝑥 ∣ 𝜑} ⊆ 𝐴 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 {cab 2738 ⊆ wss 3896 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-ss 3897 |
| This theorem is used by: ssab2 4003 intab 4937 opabss 5168 abex 5288 relopabiALT 5802 exse2 7933 opiota 8075 mpoexw 8096 fsplitfpar 8136 tfrlem8 8400 fiprc 9080 fival 9411 hartogslem1 9543 dmttrcl 9729 rnttrcl 9730 tz9.12lem1 9801 rankuni 9886 scott0b 9944 scott0OLD 9945 r0weon 10098 alephval3 10196 aceq3lem 10206 dfac5lem4 10212 dfac2b 10216 cff 10332 cfsuc 10342 cff1 10343 cflim2 10348 cfss 10350 axdc3lem 10535 axdclem 10604 gruina 10910 nqpr 11106 infcvgaux1i 16035 4sqlem1 17135 sscpwex 17999 cssval 21997 topnex 23323 islocfin 23845 hauspwpwf1 24315 itg2lcl 26057 2sqlem7 27760 cutsf 28187 isismt 29006 nmcexi 32637 opabssi 33258 lsmsnorb 33996 dispcmp 34541 cnre2csqima 34593 mppspstlem 36454 colinearex 36949 itg2addnclem 38726 itg2addnc 38729 dfprop1 38782 eldiophb 43905 |
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