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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 3416 | 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 3413 |
| 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 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-rab 3414 |
| This theorem is used by: rabbii 3418 fninfp 7179 fndifnfp 7181 nlimon 7862 dfom2 7879 rankval2 9827 rankval2b 9835 ioopos 13555 prmreclem4 17097 acsfn1 17835 acsfn2 17837 logtayl 26988 ftalem3 27402 ppiub 27531 isuvtx 29976 vtxdginducedm1 30124 finsumvtxdg2size 30131 rgrusgrprc 30170 clwwlknclwwlkdif 30570 numclwwlkqhash 30976 ubthlem1 31472 psrbasfsupp 34143 xpinpreima 34538 xpinpreima2 34539 eulerpartgbij 35004 dfscott2 35742 fineqvnttrclse 35792 topdifinfeq 38273 rabimbieq 39185 resuppsinopn 43414 rmydioph 44020 rmxdioph 44022 expdiophlem2 44028 expdioph 44029 alephiso3 44559 fsovrfovd 45008 k0004val0 45153 nzss 45300 hashnzfz 45303 fourierdlem90 47205 fourierdlem96 47211 fourierdlem97 47212 fourierdlem98 47213 fourierdlem99 47214 fourierdlem100 47215 fourierdlem109 47224 fourierdlem110 47225 fourierdlem112 47227 sssmf 47747 dfodd6 48734 dfeven4 48735 dfeven2 48746 dfodd3 48747 dfeven3 48755 dfodd4 48756 dfodd5 48757 dvsec 50855 dvcsc 50856 dvcot 50857 |
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