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| Mirrors > Home > MPE Home > Th. List > Mathboxes > cnvprop | Structured version Visualization version GIF version | ||
| Description: Converse of a pair of ordered pairs. (Contributed by Thierry Arnoux, 24-Sep-2023.) |
| Ref | Expression |
|---|---|
| cnvprop | ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑊)) → ◡{〈𝐴, 𝐵〉, 〈𝐶, 𝐷〉} = {〈𝐵, 𝐴〉, 〈𝐷, 𝐶〉}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cnvsng 6223 | . . . 4 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) → ◡{〈𝐴, 𝐵〉} = {〈𝐵, 𝐴〉}) | |
| 2 | 1 | adantr 485 | . . 3 ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑊)) → ◡{〈𝐴, 𝐵〉} = {〈𝐵, 𝐴〉}) |
| 3 | cnvsng 6223 | . . . 4 ⊢ ((𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑊) → ◡{〈𝐶, 𝐷〉} = {〈𝐷, 𝐶〉}) | |
| 4 | 3 | adantl 486 | . . 3 ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑊)) → ◡{〈𝐶, 𝐷〉} = {〈𝐷, 𝐶〉}) |
| 5 | 2, 4 | uneq12d 4122 | . 2 ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑊)) → (◡{〈𝐴, 𝐵〉} ∪ ◡{〈𝐶, 𝐷〉}) = ({〈𝐵, 𝐴〉} ∪ {〈𝐷, 𝐶〉})) |
| 6 | df-pr 4591 | . . . 4 ⊢ {〈𝐴, 𝐵〉, 〈𝐶, 𝐷〉} = ({〈𝐴, 𝐵〉} ∪ {〈𝐶, 𝐷〉}) | |
| 7 | 6 | cnveqi 5859 | . . 3 ⊢ ◡{〈𝐴, 𝐵〉, 〈𝐶, 𝐷〉} = ◡({〈𝐴, 𝐵〉} ∪ {〈𝐶, 𝐷〉}) |
| 8 | cnvun 6138 | . . 3 ⊢ ◡({〈𝐴, 𝐵〉} ∪ {〈𝐶, 𝐷〉}) = (◡{〈𝐴, 𝐵〉} ∪ ◡{〈𝐶, 𝐷〉}) | |
| 9 | 7, 8 | eqtri 2785 | . 2 ⊢ ◡{〈𝐴, 𝐵〉, 〈𝐶, 𝐷〉} = (◡{〈𝐴, 𝐵〉} ∪ ◡{〈𝐶, 𝐷〉}) |
| 10 | df-pr 4591 | . 2 ⊢ {〈𝐵, 𝐴〉, 〈𝐷, 𝐶〉} = ({〈𝐵, 𝐴〉} ∪ {〈𝐷, 𝐶〉}) | |
| 11 | 5, 9, 10 | 3eqtr4g 2822 | 1 ⊢ (((𝐴 ∈ 𝑉 ∧ 𝐵 ∈ 𝑊) ∧ (𝐶 ∈ 𝑉 ∧ 𝐷 ∈ 𝑊)) → ◡{〈𝐴, 𝐵〉, 〈𝐶, 𝐷〉} = {〈𝐵, 𝐴〉, 〈𝐷, 𝐶〉}) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 400 = wceq 1569 ∈ wcel 2142 ∪ cun 3902 {csn 4588 {cpr 4590 〈cop 4594 ◡ccnv 5659 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-8 2144 ax-9 2152 ax-ext 2734 ax-sep 5256 ax-pr 5403 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1104 df-tru 1572 df-fal 1582 df-ex 1809 df-sb 2096 df-clab 2741 df-cleq 2754 df-clel 2837 df-ral 3079 df-rex 3089 df-rab 3416 df-v 3456 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4487 df-sn 4589 df-pr 4591 df-op 4595 df-br 5109 df-opab 5173 df-xp 5666 df-rel 5667 df-cnv 5668 |
| This theorem is used by: cycpm2tr 33448 |
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