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Related theorems GIF version |
| Description: A class of ordered pairs is a relation. |
| Ref | Expression |
|---|---|
| relopab | ⊢ Rel {〈x, y〉∣φ} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | visset 1816 | . . . . . 6 ⊢ x ∈ V | |
| 2 | visset 1816 | . . . . . 6 ⊢ y ∈ V | |
| 3 | 1, 2 | pm3.2i 285 | . . . . 5 ⊢ (x ∈ V ⋀ y ∈ V) |
| 4 | 3 | a1i 8 | . . . 4 ⊢ (φ → (x ∈ V ⋀ y ∈ V)) |
| 5 | 4 | ssopab2i 2829 | . . 3 ⊢ {〈x, y〉∣φ} ⊆ {〈x, y〉∣(x ∈ V ⋀ y ∈ V)} |
| 6 | df-xp 3190 | . . 3 ⊢ (V × V) = {〈x, y〉∣(x ∈ V ⋀ y ∈ V)} | |
| 7 | 5, 6 | sseqtr4 2097 | . 2 ⊢ {〈x, y〉∣φ} ⊆ (V × V) |
| 8 | df-rel 3191 | . 2 ⊢ (Rel {〈x, y〉∣φ} ↔ {〈x, y〉∣φ} ⊆ (V × V)) | |
| 9 | 7, 8 | mpbir 190 | 1 ⊢ Rel {〈x, y〉∣φ} |
| Colors of variables: wff set class |
| Syntax hints: ⋀ wa 223 ∈ wcel 960 Vcvv 1814 ⊆ wss 2050 {copab 2671 × cxp 3174 Rel wrel 3181 |
| This theorem is referenced by: opabid2 3273 inopab 3274 reli 3279 rele 3280 relcnv 3441 cnvopab 3451 relco 3490 funopab 3554 fnopabfv 3764 reloprab 3998 reldmoprab 4011 elopabi 4123 relen 4378 reldom 4379 aceq3lem 4742 climrel 6976 eltopsp 7605 tpsex 7606 msrel 7794 lmrel 7924 isring 8137 vcrel 8162 fiv 10470 hgrarel 10739 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-10 968 ax-11 969 ax-12 970 ax-13 971 ax-14 972 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 ax-sep 2708 ax-pow 2748 ax-pr 2785 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 983 df-sb 1174 df-eu 1384 df-mo 1385 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-v 1815 df-dif 2052 df-un 2053 df-in 2054 df-ss 2056 df-nul 2284 df-pw 2406 df-sn 2416 df-pr 2417 df-op 2420 df-opab 2672 df-xp 3190 df-rel 3191 |