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Related theorems GIF version |
| Description: Variable to class conversion of transitive, reflexive relation. |
| Ref | Expression |
|---|---|
| vtoclr.1 | ⊢ Rel R |
| vtoclr.2 | ⊢ ((xRy ⋀ yRz) → xRz) |
| vtoclrbr.3 | ⊢ xRx |
| Ref | Expression |
|---|---|
| vtoclrbr | ⊢ ((ARB ⋀ BRC) → ARC) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vtoclr.1 | . . 3 ⊢ Rel R | |
| 2 | vtoclr.2 | . . 3 ⊢ ((xRy ⋀ yRz) → xRz) | |
| 3 | 1, 2 | vtoclr 3207 | . 2 ⊢ (C ∈ V → ((ARB ⋀ BRC) → ARC)) |
| 4 | brprc 2657 | . . . . 5 ⊢ (¬ C ∈ V → (ARC ↔ ARA)) | |
| 5 | breq1 2618 | . . . . . . 7 ⊢ (x = A → (xRx ↔ ARx)) | |
| 6 | breq2 2619 | . . . . . . 7 ⊢ (x = A → (ARx ↔ ARA)) | |
| 7 | 5, 6 | bitrd 527 | . . . . . 6 ⊢ (x = A → (xRx ↔ ARA)) |
| 8 | vtoclrbr.3 | . . . . . 6 ⊢ xRx | |
| 9 | 7, 8 | vtoclg 1844 | . . . . 5 ⊢ (A ∈ V → ARA) |
| 10 | 4, 9 | syl5bir 210 | . . . 4 ⊢ (¬ C ∈ V → (A ∈ V → ARC)) |
| 11 | 1 | brrelexi 3204 | . . . 4 ⊢ (ARB → A ∈ V) |
| 12 | 10, 11 | syl5 21 | . . 3 ⊢ (¬ C ∈ V → (ARB → ARC)) |
| 13 | 12 | adantrd 391 | . 2 ⊢ (¬ C ∈ V → ((ARB ⋀ BRC) → ARC)) |
| 14 | 3, 13 | pm2.61i 126 | 1 ⊢ ((ARB ⋀ BRC) → ARC) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 2 → wi 3 ⋀ wa 223 = wceq 955 ∈ wcel 957 Vcvv 1808 class class class wbr 2615 Rel wrel 3171 |
| This theorem is referenced by: entrt 4404 domtr 4405 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 961 ax-gen 962 ax-8 963 ax-10 965 ax-11 966 ax-12 967 ax-13 968 ax-14 969 ax-17 970 ax-4 972 ax-5o 974 ax-6o 977 ax-9o 1122 ax-10o 1139 ax-16 1209 ax-11o 1217 ax-ext 1458 ax-sep 2699 ax-pow 2738 ax-pr 2775 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 980 df-sb 1171 df-eu 1381 df-mo 1382 df-clab 1463 df-cleq 1468 df-clel 1471 df-ne 1585 df-v 1809 df-dif 2046 df-un 2047 df-in 2048 df-ss 2050 df-nul 2278 df-pw 2399 df-sn 2409 df-pr 2410 df-op 2413 df-br 2616 df-opab 2663 df-xp 3180 df-rel 3181 |