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| Mirrors > Home > ILE Home > Th. List > relelbasov | GIF version | ||
| Description: Utility theorem: reverse closure for any structure defined as a two-argument function. (Contributed by Mario Carneiro, 3-Oct-2015.) |
| Ref | Expression |
|---|---|
| elbasov.o | ⊢ Rel dom 𝑂 |
| relelbasov.r | ⊢ Rel 𝑂 |
| elbasov.s | ⊢ 𝑆 = (𝑋𝑂𝑌) |
| elbasov.b | ⊢ 𝐵 = (Base‘𝑆) |
| Ref | Expression |
|---|---|
| relelbasov | ⊢ (𝐴 ∈ 𝐵 → (𝑋 ∈ V ∧ 𝑌 ∈ V)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elbasov.b | . . 3 ⊢ 𝐵 = (Base‘𝑆) | |
| 2 | 1 | basm 13167 | . 2 ⊢ (𝐴 ∈ 𝐵 → ∃𝑗 𝑗 ∈ 𝑆) |
| 3 | elbasov.o | . . . . 5 ⊢ Rel dom 𝑂 | |
| 4 | df-rel 4734 | . . . . 5 ⊢ (Rel dom 𝑂 ↔ dom 𝑂 ⊆ (V × V)) | |
| 5 | 3, 4 | mpbi 145 | . . . 4 ⊢ dom 𝑂 ⊆ (V × V) |
| 6 | relelbasov.r | . . . . 5 ⊢ Rel 𝑂 | |
| 7 | simpr 110 | . . . . . . 7 ⊢ ((𝐴 ∈ 𝐵 ∧ 𝑗 ∈ 𝑆) → 𝑗 ∈ 𝑆) | |
| 8 | elbasov.s | . . . . . . 7 ⊢ 𝑆 = (𝑋𝑂𝑌) | |
| 9 | 7, 8 | eleqtrdi 2323 | . . . . . 6 ⊢ ((𝐴 ∈ 𝐵 ∧ 𝑗 ∈ 𝑆) → 𝑗 ∈ (𝑋𝑂𝑌)) |
| 10 | df-ov 6026 | . . . . . 6 ⊢ (𝑋𝑂𝑌) = (𝑂‘〈𝑋, 𝑌〉) | |
| 11 | 9, 10 | eleqtrdi 2323 | . . . . 5 ⊢ ((𝐴 ∈ 𝐵 ∧ 𝑗 ∈ 𝑆) → 𝑗 ∈ (𝑂‘〈𝑋, 𝑌〉)) |
| 12 | relelfvdm 5674 | . . . . 5 ⊢ ((Rel 𝑂 ∧ 𝑗 ∈ (𝑂‘〈𝑋, 𝑌〉)) → 〈𝑋, 𝑌〉 ∈ dom 𝑂) | |
| 13 | 6, 11, 12 | sylancr 414 | . . . 4 ⊢ ((𝐴 ∈ 𝐵 ∧ 𝑗 ∈ 𝑆) → 〈𝑋, 𝑌〉 ∈ dom 𝑂) |
| 14 | 5, 13 | sselid 3224 | . . 3 ⊢ ((𝐴 ∈ 𝐵 ∧ 𝑗 ∈ 𝑆) → 〈𝑋, 𝑌〉 ∈ (V × V)) |
| 15 | opelxp 4757 | . . 3 ⊢ (〈𝑋, 𝑌〉 ∈ (V × V) ↔ (𝑋 ∈ V ∧ 𝑌 ∈ V)) | |
| 16 | 14, 15 | sylib 122 | . 2 ⊢ ((𝐴 ∈ 𝐵 ∧ 𝑗 ∈ 𝑆) → (𝑋 ∈ V ∧ 𝑌 ∈ V)) |
| 17 | 2, 16 | exlimddv 1946 | 1 ⊢ (𝐴 ∈ 𝐵 → (𝑋 ∈ V ∧ 𝑌 ∈ V)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1397 ∈ wcel 2201 Vcvv 2801 ⊆ wss 3199 〈cop 3673 × cxp 4725 dom cdm 4727 Rel wrel 4732 ‘cfv 5328 (class class class)co 6023 Basecbs 13105 |
| 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-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 ax-cnex 8128 ax-resscn 8129 ax-1re 8131 ax-addrcl 8134 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ral 2514 df-rex 2515 df-v 2803 df-sbc 3031 df-un 3203 df-in 3205 df-ss 3212 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-int 3930 df-br 4090 df-opab 4152 df-mpt 4153 df-id 4392 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-iota 5288 df-fun 5330 df-fn 5331 df-fv 5336 df-ov 6026 df-inn 9149 df-ndx 13108 df-slot 13109 df-base 13111 |
| This theorem is referenced by: psrelbas 14718 psradd 14722 psraddcl 14723 mplrcl 14737 mplbasss 14739 mpladd 14747 |
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