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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 5741 elovmporab1w 6223 mpoxopoveq 6406 supeq123d 7190 phival 12786 dfphi2 12793 gsumress 13479 ismhm 13545 mhmex 13546 issubm 13556 issubg 13761 subgex 13764 isnsg 13790 dfrhm2 14170 isrim0 14177 issubrng 14215 issubrg 14237 rrgval 14278 lsssetm 14372 mplvalcoe 14706 cldval 14825 neifval 14866 cnfval 14920 cnpfval 14921 cnprcl2k 14932 hmeofvalg 15029 ispsmet 15049 ismet 15070 isxmet 15071 blfvalps 15111 cncfval 15298 vtxdgfval 16141 vtxdgop 16145 vtxdeqd 16149 clwwlkg 16246 clwwlkng 16258 |
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