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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 2877 | . 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 2714 |
| 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 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-tru 1545 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 |
| This theorem is referenced by: eqabcri 2879 rabid 3410 csbcow 3852 csbco 3853 csbgfi 3857 csbnestgfw 4362 csbnestgf 4367 relopabi 5778 cnv0OLD 6104 funcnv3 6568 opabiota 6922 zfrep6OLD 7908 frrlem2 8237 frrlem3 8238 frrlem4 8239 frrlem8 8243 fprresex 8260 tfrlem4 8318 tfrlem8 8323 tfrlem9 8324 ixpn0 8878 sbthlem1 9025 dffi3 9344 setinds 9670 1idpr 10952 ltexprlem1 10959 ltexprlem2 10960 ltexprlem3 10961 ltexprlem4 10962 ltexprlem6 10964 ltexprlem7 10965 reclem2pr 10971 reclem3pr 10972 reclem4pr 10973 supsrlem 11034 dissnref 23493 dissnlocfin 23494 txbas 23532 xkoccn 23584 xkoptsub 23619 xkoco1cn 23622 xkoco2cn 23623 xkoinjcn 23652 mbfi1fseqlem4 25685 avril1 30533 rnmposs 32746 bnj1436 34981 bnj916 35075 bnj983 35093 bnj1083 35120 bnj1245 35156 bnj1311 35166 bnj1371 35171 bnj1398 35176 tz9.1regs 35278 bj-elsngl 37275 bj-projun 37301 bj-projval 37303 f1omptsnlem 37652 icoreresf 37668 finxp0 37707 finxp1o 37708 finxpsuclem 37713 sdclem1 38064 csbcom2fi 38449 ralrnmo 38682 raldmqsmo 38684 rr-grothshortbi 44730 modelaxreplem3 45407 |
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