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Mirrors > Home > ILE Home > Th. List > optocl | Unicode version |
Description: Implicit substitution of class for ordered pair. (Contributed by NM, 5-Mar-1995.) |
Ref | Expression |
---|---|
optocl.1 |
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optocl.2 |
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optocl.3 |
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Ref | Expression |
---|---|
optocl |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elxp3 4714 |
. . 3
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2 | opelxp 4690 |
. . . . . . 7
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3 | optocl.3 |
. . . . . . 7
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4 | 2, 3 | sylbi 121 |
. . . . . 6
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5 | optocl.2 |
. . . . . 6
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6 | 4, 5 | imbitrid 154 |
. . . . 5
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7 | 6 | imp 124 |
. . . 4
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8 | 7 | exlimivv 1908 |
. . 3
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9 | 1, 8 | sylbi 121 |
. 2
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10 | optocl.1 |
. 2
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11 | 9, 10 | eleq2s 2288 |
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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-opab 4092 df-xp 4666 |
This theorem is referenced by: 2optocl 4737 3optocl 4738 ecoptocl 6678 ax1rid 7939 ax0id 7940 axcnre 7943 |
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