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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 2794 | . . 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 2791 | . 2 ⊢ (𝜑 → {𝑥 ∈ 𝐵 ∣ 𝜓} = {𝑥 ∈ 𝐵 ∣ 𝜒}) |
| 6 | 3, 5 | eqtrd 2264 | 1 ⊢ (𝜑 → {𝑥 ∈ 𝐴 ∣ 𝜓} = {𝑥 ∈ 𝐵 ∣ 𝜒}) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ↔ wb 105 = wceq 1397 {crab 2514 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rab 2519 |
| This theorem is referenced by: elfvmptrab1 5742 elovmporab1w 6226 mpoxopoveq 6409 supeq123d 7193 phival 12806 dfphi2 12813 gsumress 13499 ismhm 13565 mhmex 13566 issubm 13576 issubg 13781 subgex 13784 isnsg 13810 dfrhm2 14190 isrim0 14197 issubrng 14235 issubrg 14257 rrgval 14298 lsssetm 14392 mplvalcoe 14731 cldval 14850 neifval 14891 cnfval 14945 cnpfval 14946 cnprcl2k 14957 hmeofvalg 15054 ispsmet 15074 ismet 15095 isxmet 15096 blfvalps 15136 cncfval 15323 vtxdgfval 16166 vtxdgop 16170 vtxdeqd 16174 clwwlkg 16271 clwwlkng 16283 |
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