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| Mirrors > Home > MPE Home > Th. List > rabbiia | Structured version Visualization version GIF version | ||
| Description: Equivalent formulas yield equal restricted class abstractions (inference form). (Contributed by NM, 22-May-1999.) (Proof shortened by Wolf Lammen, 12-Jan-2025.) |
| Ref | Expression |
|---|---|
| rabbiia.1 | ⊢ (𝑥 ∈ 𝐴 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| rabbiia | ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} = {𝑥 ∈ 𝐴 ∣ 𝜓} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rabbiia.1 | . . 3 ⊢ (𝑥 ∈ 𝐴 → (𝜑 ↔ 𝜓)) | |
| 2 | 1 | pm5.32i 585 | . 2 ⊢ ((𝑥 ∈ 𝐴 ∧ 𝜑) ↔ (𝑥 ∈ 𝐴 ∧ 𝜓)) |
| 3 | 2 | rabbia2 3415 | 1 ⊢ {𝑥 ∈ 𝐴 ∣ 𝜑} = {𝑥 ∈ 𝐴 ∣ 𝜓} |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1570 ∈ wcel 2145 {crab 3412 |
| 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-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2739 df-cleq 2752 df-rab 3413 |
| This theorem is used by: rabbii 3417 fninfp 7173 fndifnfp 7175 nlimon 7848 dfom2 7865 rankval2 9803 ioopos 13480 prmreclem4 17014 acsfn1 17752 acsfn2 17754 logtayl 26900 ftalem3 27314 ppiub 27443 isuvtx 29858 vtxdginducedm1 30006 finsumvtxdg2size 30013 rgrusgrprc 30052 clwwlknclwwlkdif 30452 numclwwlkqhash 30858 ubthlem1 31354 psrbasfsupp 34024 xpinpreima 34419 xpinpreima2 34420 eulerpartgbij 34886 rankval2b 35609 dfscott2 35628 fineqvnttrclse 35653 topdifinfeq 38107 rabimbieq 39004 resuppsinopn 43241 rmydioph 43858 rmxdioph 43860 expdiophlem2 43866 expdioph 43867 alephiso3 44402 fsovrfovd 44852 k0004val0 44997 nzss 45144 hashnzfz 45147 fourierdlem90 47027 fourierdlem96 47033 fourierdlem97 47034 fourierdlem98 47035 fourierdlem99 47036 fourierdlem100 47037 fourierdlem109 47046 fourierdlem110 47047 fourierdlem112 47049 sssmf 47569 dfodd6 48556 dfeven4 48557 dfeven2 48568 dfodd3 48569 dfeven3 48577 dfodd4 48578 dfodd5 48579 dvsec 50692 dvcsc 50693 dvcot 50694 |
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