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| Mirrors > Home > MPE Home > Th. List > ovanraleqv | Structured version Visualization version GIF version | ||
| Description: Equality theorem for a conjunction with an operation values within a restricted universal quantification. Technical theorem to be used to reduce the size of a significant number of proofs. (Contributed by AV, 13-Aug-2022.) |
| Ref | Expression |
|---|---|
| ovanraleqv.1 | ⊢ (𝐵 = 𝑋 → (𝜑 ↔ 𝜓)) |
| Ref | Expression |
|---|---|
| ovanraleqv | ⊢ (𝐵 = 𝑋 → (∀𝑥 ∈ 𝑉 (𝜑 ∧ (𝐴 · 𝐵) = 𝐶) ↔ ∀𝑥 ∈ 𝑉 (𝜓 ∧ (𝐴 · 𝑋) = 𝐶))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ovanraleqv.1 | . . 3 ⊢ (𝐵 = 𝑋 → (𝜑 ↔ 𝜓)) | |
| 2 | oveq2 7364 | . . . 4 ⊢ (𝐵 = 𝑋 → (𝐴 · 𝐵) = (𝐴 · 𝑋)) | |
| 3 | 2 | eqeq1d 2737 | . . 3 ⊢ (𝐵 = 𝑋 → ((𝐴 · 𝐵) = 𝐶 ↔ (𝐴 · 𝑋) = 𝐶)) |
| 4 | 1, 3 | anbi12d 633 | . 2 ⊢ (𝐵 = 𝑋 → ((𝜑 ∧ (𝐴 · 𝐵) = 𝐶) ↔ (𝜓 ∧ (𝐴 · 𝑋) = 𝐶))) |
| 5 | 4 | ralbidv 3158 | 1 ⊢ (𝐵 = 𝑋 → (∀𝑥 ∈ 𝑉 (𝜑 ∧ (𝐴 · 𝐵) = 𝐶) ↔ ∀𝑥 ∈ 𝑉 (𝜓 ∧ (𝐴 · 𝑋) = 𝐶))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∀wral 3049 (class class class)co 7356 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2707 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2714 df-cleq 2727 df-clel 2810 df-ral 3050 df-rab 3388 df-v 3429 df-dif 3888 df-un 3890 df-ss 3902 df-nul 4264 df-if 4457 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-br 5075 df-iota 6443 df-fv 6495 df-ov 7359 |
| This theorem is referenced by: mgmidmo 18617 ismgmid 18622 ismgmid2 18625 mgmidsssn0 18629 gsumvalx 18633 gsumress 18639 sgrpidmnd 18696 ismndd 18713 mnd1 18736 gsumvallem2 18791 mhmmnd 19029 ringurd 20155 opprring 20316 pzriprnglem7 21456 pzriprnglem13 21462 zsoring 28389 signsw0g 34688 signswmnd 34689 exidu1 38165 cmpidelt 38168 exidres 38187 exidresid 38188 isrngod 38207 rngoideu 38212 zlidlring 48698 2zrngamnd 48711 |
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