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| Mirrors > Home > ILE Home > Th. List > rabeqbidv | GIF version | ||
| Description: Equality of restricted class abstractions. (Contributed by Jeff Madsen, 1-Dec-2009.) |
| Ref | Expression |
|---|---|
| rabeqbidv.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| rabeqbidv.2 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| rabeqbidv | ⊢ (𝜑 → {𝑥 ∈ 𝐴 ∣ 𝜓} = {𝑥 ∈ 𝐵 ∣ 𝜒}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rabeqbidv.1 | . . 3 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | rabeq 2813 | . . 3 ⊢ (𝐴 = 𝐵 → {𝑥 ∈ 𝐴 ∣ 𝜓} = {𝑥 ∈ 𝐵 ∣ 𝜓}) | |
| 3 | 1, 2 | syl 14 | . 2 ⊢ (𝜑 → {𝑥 ∈ 𝐴 ∣ 𝜓} = {𝑥 ∈ 𝐵 ∣ 𝜓}) |
| 4 | rabeqbidv.2 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 5 | 4 | rabbidv 2810 | . 2 ⊢ (𝜑 → {𝑥 ∈ 𝐵 ∣ 𝜓} = {𝑥 ∈ 𝐵 ∣ 𝜒}) |
| 6 | 3, 5 | eqtrd 2271 | 1 ⊢ (𝜑 → {𝑥 ∈ 𝐴 ∣ 𝜓} = {𝑥 ∈ 𝐵 ∣ 𝜒}) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 = wceq 1402 {crab 2532 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rab 2537 |
| This theorem is referenced by: elfvmptrab1 5797 elovmporab1w 6284 suppval 6471 mpoxopoveq 6505 supeq123d 7325 phival 12974 dfphi2 12981 gzsumress 13695 ismhm 13751 mhmex 13752 issubm 13762 issubg 13959 subgex 13962 isnsg 13988 dfrhm2 14444 isrim0 14451 issubrng 14490 issubrg 14512 rrgval 14553 lsssetm 14676 mplvalcoe 15064 cldval 15183 neifval 15224 cnfval 15278 cnpfval 15279 cnprcl2k 15290 hmeofvalg 15387 ispsmet 15407 ismet 15428 isxmet 15429 blfvalps 15469 cncfval 15656 vtxdgfval 16512 vtxdgop 16516 vtxdeqd 16520 clwwlkg 16617 clwwlkng 16629 |
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