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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 2878 | . 2 ⊢ (⊤ → (𝑥 ∈ 𝐴 ↔ 𝜑)) |
| 4 | 3 | mptru 1549 | 1 ⊢ (𝑥 ∈ 𝐴 ↔ 𝜑) |
| Colors of variables: wff setvar class |
| Syntax hints: ↔ wb 206 = wceq 1542 ⊤wtru 1543 ∈ wcel 2114 {cab 2715 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-12 2185 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 |
| This theorem is referenced by: eqabcri 2880 rabid 3411 csbcow 3853 csbco 3854 csbgfi 3858 csbnestgfw 4363 csbnestgf 4368 relopabi 5771 cnv0OLD 6098 funcnv3 6562 opabiota 6916 zfrep6OLD 7901 frrlem2 8230 frrlem3 8231 frrlem4 8232 frrlem8 8236 fprresex 8253 tfrlem4 8311 tfrlem8 8316 tfrlem9 8317 ixpn0 8871 sbthlem1 9018 dffi3 9337 setinds 9661 1idpr 10943 ltexprlem1 10950 ltexprlem2 10951 ltexprlem3 10952 ltexprlem4 10953 ltexprlem6 10955 ltexprlem7 10956 reclem2pr 10962 reclem3pr 10963 reclem4pr 10964 supsrlem 11025 dissnref 23503 dissnlocfin 23504 txbas 23542 xkoccn 23594 xkoptsub 23629 xkoco1cn 23632 xkoco2cn 23633 xkoinjcn 23662 mbfi1fseqlem4 25695 avril1 30548 rnmposs 32761 bnj1436 34997 bnj916 35091 bnj983 35109 bnj1083 35136 bnj1245 35172 bnj1311 35182 bnj1371 35187 bnj1398 35192 tz9.1regs 35294 bj-elsngl 37291 bj-projun 37317 bj-projval 37319 f1omptsnlem 37666 icoreresf 37682 finxp0 37721 finxp1o 37722 finxpsuclem 37727 sdclem1 38078 csbcom2fi 38463 ralrnmo 38696 raldmqsmo 38698 rr-grothshortbi 44748 modelaxreplem3 45425 |
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