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Mirrors > Home > ILE Home > Th. List > opm | Unicode version |
Description: An ordered pair is inhabited iff the arguments are sets. (Contributed by Jim Kingdon, 21-Sep-2018.) |
Ref | Expression |
---|---|
opm |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-op 3602 |
. . . . 5
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2 | 1 | eleq2i 2244 |
. . . 4
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3 | 2 | exbii 1605 |
. . 3
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4 | abid 2165 |
. . . 4
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5 | 4 | exbii 1605 |
. . 3
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6 | 3, 5 | bitri 184 |
. 2
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7 | 19.42v 1906 |
. . 3
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8 | df-3an 980 |
. . . 4
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9 | 8 | exbii 1605 |
. . 3
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10 | df-3an 980 |
. . 3
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11 | 7, 9, 10 | 3bitr4ri 213 |
. 2
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12 | 3simpa 994 |
. . 3
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13 | id 19 |
. . . 4
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14 | snexg 4185 |
. . . . . 6
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15 | 14 | adantr 276 |
. . . . 5
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16 | prmg 3714 |
. . . . 5
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17 | 15, 16 | syl 14 |
. . . 4
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18 | 13, 17, 10 | sylanbrc 417 |
. . 3
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19 | 12, 18 | impbii 126 |
. 2
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20 | 6, 11, 19 | 3bitr2i 208 |
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-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 4122 ax-pow 4175 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-v 2740 df-un 3134 df-in 3136 df-ss 3143 df-pw 3578 df-sn 3599 df-pr 3600 df-op 3602 |
This theorem is referenced by: opnzi 4236 opeqex 4250 cnm 7831 setsfun0 12498 |
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