| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 2907 | . 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 2146 {cab 2744 |
| 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 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-12 2216 ax-ext 2738 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2745 df-cleq 2758 df-clel 2841 |
| This theorem is used by: eqabcri 2909 rabid 3440 csbcow 3871 csbco 3872 csbgfi 3876 csbnestgfw 4390 csbnestgf 4395 relopabi 5814 cnv0OLD 5875 funcnv3 6613 opabiota 6970 zfrep6OLD 7961 frrlem2 8293 frrlem3 8294 frrlem4 8295 frrlem8 8299 fprresex 8316 tfrlem4 8374 tfrlem8 8380 tfrlem9 8381 ixpn0 8937 sbthlem1 9085 dffi3 9401 setinds 9728 1idpr 11032 ltexprlem1 11039 ltexprlem2 11040 ltexprlem3 11041 ltexprlem4 11042 ltexprlem6 11044 ltexprlem7 11045 reclem2pr 11051 reclem3pr 11052 reclem4pr 11053 supsrlem 11114 dissnref 23722 dissnlocfin 23723 txbas 23761 xkoccn 23813 xkoptsub 23848 xkoco1cn 23851 xkoco2cn 23852 xkoinjcn 23881 mbfi1fseqlem4 25914 avril1 30851 rnmposs 33055 bnj1436 35259 bnj916 35353 bnj983 35371 bnj1083 35398 bnj1245 35434 bnj1311 35444 bnj1371 35449 bnj1398 35454 tz9.1regs 35571 bj-elsngl 37645 bj-projun 37671 bj-projval 37673 f1omptsnlem 38023 icoreresf 38039 finxp0 38078 finxp1o 38079 finxpsuclem 38084 sdclem1 38435 csbcom2fi 38818 ralrnmo 39051 raldmqsmo 39053 rr-grothshortbi 45054 modelaxreplem3 45730 |
| Copyright terms: Public domain | W3C validator |