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Mirrors > Home > ILE Home > Th. List > cnvsom | Unicode version |
Description: The converse of a strict order relation is a strict order relation. (Contributed by Jim Kingdon, 19-Dec-2018.) |
Ref | Expression |
---|---|
cnvsom |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnvpom 5173 |
. . 3
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2 | vex 2742 |
. . . . . . . . 9
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3 | vex 2742 |
. . . . . . . . 9
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4 | 2, 3 | brcnv 4812 |
. . . . . . . 8
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5 | vex 2742 |
. . . . . . . . . . 11
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6 | 2, 5 | brcnv 4812 |
. . . . . . . . . 10
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7 | 5, 3 | brcnv 4812 |
. . . . . . . . . 10
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8 | 6, 7 | orbi12i 764 |
. . . . . . . . 9
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9 | orcom 728 |
. . . . . . . . 9
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10 | 8, 9 | bitri 184 |
. . . . . . . 8
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11 | 4, 10 | imbi12i 239 |
. . . . . . 7
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12 | 11 | ralbii 2483 |
. . . . . 6
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13 | 12 | 2ralbii 2485 |
. . . . 5
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14 | ralcom 2640 |
. . . . 5
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15 | 13, 14 | bitr3i 186 |
. . . 4
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16 | 15 | a1i 9 |
. . 3
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17 | 1, 16 | anbi12d 473 |
. 2
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18 | df-iso 4299 |
. 2
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19 | df-iso 4299 |
. 2
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20 | 17, 18, 19 | 3bitr4g 223 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
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-in1 614 ax-in2 615 ax-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-14 2151 ax-ext 2159 ax-sep 4123 ax-pow 4176 ax-pr 4211 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-eu 2029 df-mo 2030 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-v 2741 df-un 3135 df-in 3137 df-ss 3144 df-pw 3579 df-sn 3600 df-pr 3601 df-op 3603 df-br 4006 df-opab 4067 df-po 4298 df-iso 4299 df-cnv 4636 |
This theorem is referenced by: gtso 8038 |
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