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Theorem cnvpo 4427
Description: The converse of a partial order relation is a partial order relation.
Assertion
Ref Expression
cnvpo |- (R Po A <-> `'R Po A)

Proof of Theorem cnvpo
StepHypRef Expression
1 r19.26 2219 . . . . . . . 8 |- (A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> (A.z e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)))
21ralbii 2127 . . . . . . 7 |- (A.x e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> A.x e. A (A.z e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)))
3 r19.26 2219 . . . . . . 7 |- (A.x e. A (A.z e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)) <-> (A.x e. A A.z e. A -. xRx /\ A.x e. A A.z e. A ((xRy /\ yRz) -> xRz)))
4 ralidm 2973 . . . . . . . . 9 |- (A.x e. A A.x e. A -. xRx <-> A.x e. A -. xRx)
5 rzal 2970 . . . . . . . . . . 11 |- (A = (/) -> A.x e. A -. xRx)
6 rzal 2970 . . . . . . . . . . 11 |- (A = (/) -> A.x e. A A.z e. A -. xRx)
7 pm5.1 740 . . . . . . . . . . 11 |- ((A.x e. A -. xRx /\ A.x e. A A.z e. A -. xRx) -> (A.x e. A -. xRx <-> A.x e. A A.z e. A -. xRx))
85, 6, 7syl11anc 524 . . . . . . . . . 10 |- (A = (/) -> (A.x e. A -. xRx <-> A.x e. A A.z e. A -. xRx))
9 r19.3rzv 2962 . . . . . . . . . . 11 |- (A =/= (/) -> (-. xRx <-> A.z e. A -. xRx))
109ralbidv 2123 . . . . . . . . . 10 |- (A =/= (/) -> (A.x e. A -. xRx <-> A.x e. A A.z e. A -. xRx))
118, 10pm2.61ine 2089 . . . . . . . . 9 |- (A.x e. A -. xRx <-> A.x e. A A.z e. A -. xRx)
124, 11bitr2i 191 . . . . . . . 8 |- (A.x e. A A.z e. A -. xRx <-> A.x e. A A.x e. A -. xRx)
1312anbi1i 539 . . . . . . 7 |- ((A.x e. A A.z e. A -. xRx /\ A.x e. A A.z e. A ((xRy /\ yRz) -> xRz)) <-> (A.x e. A A.x e. A -. xRx /\ A.x e. A A.z e. A ((xRy /\ yRz) -> xRz)))
142, 3, 133bitri 194 . . . . . 6 |- (A.x e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> (A.x e. A A.x e. A -. xRx /\ A.x e. A A.z e. A ((xRy /\ yRz) -> xRz)))
15 r19.26 2219 . . . . . 6 |- (A.x e. A (A.x e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)) <-> (A.x e. A A.x e. A -. xRx /\ A.x e. A A.z e. A ((xRy /\ yRz) -> xRz)))
1614, 15bitr4i 193 . . . . 5 |- (A.x e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> A.x e. A (A.x e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)))
17 r19.26 2219 . . . . . . 7 |- (A.z e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)) <-> (A.z e. A -. z`'Rz /\ A.z e. A ((z`'Ry /\ y`'Rx) -> z`'Rx)))
18 id 73 . . . . . . . . . . . 12 |- (z = x -> z = x)
1918, 18breq12d 3351 . . . . . . . . . . 11 |- (z = x -> (zRz <-> xRx))
20 visset 2295 . . . . . . . . . . . 12 |- z e. _V
2120, 20brcnv 4144 . . . . . . . . . . 11 |- (z`'Rz <-> zRz)
2219, 21syl5bb 591 . . . . . . . . . 10 |- (z = x -> (z`'Rz <-> xRx))
2322notbid 673 . . . . . . . . 9 |- (z = x -> (-. z`'Rz <-> -. xRx))
2423cbvralv 2280 . . . . . . . 8 |- (A.z e. A -. z`'Rz <-> A.x e. A -. xRx)
25 visset 2295 . . . . . . . . . . . . 13 |- y e. _V
2620, 25brcnv 4144 . . . . . . . . . . . 12 |- (z`'Ry <-> yRz)
27 visset 2295 . . . . . . . . . . . . 13 |- x e. _V
2825, 27brcnv 4144 . . . . . . . . . . . 12 |- (y`'Rx <-> xRy)
2926, 28anbi12i 540 . . . . . . . . . . 11 |- ((z`'Ry /\ y`'Rx) <-> (yRz /\ xRy))
30 ancom 482 . . . . . . . . . . 11 |- ((yRz /\ xRy) <-> (xRy /\ yRz))
3129, 30bitri 190 . . . . . . . . . 10 |- ((z`'Ry /\ y`'Rx) <-> (xRy /\ yRz))
3220, 27brcnv 4144 . . . . . . . . . 10 |- (z`'Rx <-> xRz)
3331, 32imbi12i 205 . . . . . . . . 9 |- (((z`'Ry /\ y`'Rx) -> z`'Rx) <-> ((xRy /\ yRz) -> xRz))
3433ralbii 2127 . . . . . . . 8 |- (A.z e. A ((z`'Ry /\ y`'Rx) -> z`'Rx) <-> A.z e. A ((xRy /\ yRz) -> xRz))
3524, 34anbi12i 540 . . . . . . 7 |- ((A.z e. A -. z`'Rz /\ A.z e. A ((z`'Ry /\ y`'Rx) -> z`'Rx)) <-> (A.x e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)))
3617, 35bitr2i 191 . . . . . 6 |- ((A.x e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)) <-> A.z e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
3736ralbii 2127 . . . . 5 |- (A.x e. A (A.x e. A -. xRx /\ A.z e. A ((xRy /\ yRz) -> xRz)) <-> A.x e. A A.z e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
38 ralcom 2242 . . . . 5 |- (A.x e. A A.z e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)) <-> A.z e. A A.x e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
3916, 37, 383bitri 194 . . . 4 |- (A.x e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> A.z e. A A.x e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
4039ralbii 2127 . . 3 |- (A.y e. A A.x e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> A.y e. A A.z e. A A.x e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
41 ralcom 2242 . . 3 |- (A.x e. A A.y e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> A.y e. A A.x e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)))
42 ralcom 2242 . . 3 |- (A.z e. A A.y e. A A.x e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)) <-> A.y e. A A.z e. A A.x e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
4340, 41, 423bitr4i 200 . 2 |- (A.x e. A A.y e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)) <-> A.z e. A A.y e. A A.x e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
44 df-po 3591 . 2 |- (R Po A <-> A.x e. A A.y e. A A.z e. A (-. xRx /\ ((xRy /\ yRz) -> xRz)))
45 df-po 3591 . 2 |- (`'R Po A <-> A.z e. A A.y e. A A.x e. A (-. z`'Rz /\ ((z`'Ry /\ y`'Rx) -> z`'Rx)))
4643, 44, 453bitr4i 200 1 |- (R Po A <-> `'R Po A)
Colors of variables: wff set class
Syntax hints:  -. wn 2   -> wi 3   <-> wb 163   /\ wa 240   = wceq 1298   =/= wne 2017  A.wral 2105  (/)c0 2875   class class class wbr 3338   Po wpo 3589  `'ccnv 3985
This theorem is referenced by:  cnvso 4428
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 1304  ax-gen 1305  ax-8 1306  ax-9 1307  ax-10 1308  ax-11 1309  ax-12 1310  ax-14 1312  ax-17 1317  ax-4 1319  ax-5o 1321  ax-6o 1324  ax-9o 1481  ax-10o 1500  ax-16 1580  ax-11o 1588  ax-ext 1865  ax-sep 3438  ax-nul 3445  ax-pow 3481  ax-pr 3524
This theorem depends on definitions:  df-bi 164  df-or 241  df-an 242  df-ex 1327  df-sb 1536  df-eu 1775  df-mo 1776  df-clab 1872  df-cleq 1877  df-clel 1880  df-ne 2019  df-ral 2109  df-v 2294  df-dif 2597  df-un 2600  df-in 2603  df-ss 2605  df-nul 2876  df-pw 3035  df-sn 3049  df-pr 3050  df-op 3053  df-br 3339  df-opab 3396  df-po 3591  df-cnv 4002
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