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| Mirrors > Home > MPE Home > Th. List > eqabri | Structured version Visualization version GIF version | ||
| Description: Equality of a class variable and a class abstraction (inference form). (Contributed by NM, 3-Apr-1996.) (Proof shortened by Wolf Lammen, 15-Nov-2019.) |
| Ref | Expression |
|---|---|
| eqabri.1 | ⊢ 𝐴 = {𝑥 ∣ 𝜑} |
| Ref | Expression |
|---|---|
| eqabri | ⊢ (𝑥 ∈ 𝐴 ↔ 𝜑) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqabri.1 | . . . 4 ⊢ 𝐴 = {𝑥 ∣ 𝜑} | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → 𝐴 = {𝑥 ∣ 𝜑}) |
| 3 | 2 | eqabrd 2905 | . 2 ⊢ (⊤ → (𝑥 ∈ 𝐴 ↔ 𝜑)) |
| 4 | 3 | mptru 1577 | 1 ⊢ (𝑥 ∈ 𝐴 ↔ 𝜑) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 = wceq 1570 ⊤wtru 1571 ∈ wcel 2147 {cab 2741 |
| 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-12 2216 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 |
| This theorem is used by: eqabcri 2907 rabid 3436 csbcow 3866 csbco 3867 csbgfi 3871 csbnestgfw 4383 csbnestgf 4388 relopabiOLD 5807 cnv0OLD 5870 funcnv3 6635 opabiota 6993 rnmposs 7581 zfrep6OLD 7994 frrlem2 8336 frrlem3 8337 frrlem4 8338 frrlem8 8342 fprresex 8359 tfrlem4 8417 tfrlem8 8423 tfrlem9 8424 ixpn0 8989 sbthlem1 9137 dffi3 9453 setinds 9780 1idpr 11144 ltexprlem1 11151 ltexprlem2 11152 ltexprlem3 11153 ltexprlem4 11154 ltexprlem6 11156 ltexprlem7 11157 reclem2pr 11163 reclem3pr 11164 reclem4pr 11165 supsrlem 11226 dissnref 23880 dissnlocfin 23881 txbas 23919 xkoccn 23971 xkoptsub 24006 xkoco1cn 24009 xkoco2cn 24010 xkoinjcn 24039 mbfi1fseqlem4 26072 avril1 31097 bnj1436 35552 bnj916 35646 bnj983 35664 bnj1083 35691 bnj1245 35727 bnj1311 35737 bnj1371 35742 bnj1398 35747 tz9.1regs 35915 bj-elsngl 38072 bj-projun 38098 bj-projval 38100 f1omptsnlem 38464 icoreresf 38480 finxp0 38519 finxp1o 38520 finxpsuclem 38525 dfproplem 38846 sdclem1 38880 csbcom2fi 39263 ralrnmo 39496 raldmqsmo 39498 rr-grothshortbi 45490 modelaxreplem3 46176 |
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