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Mirrors > Home > ILE Home > Th. List > rmo4 | Unicode version |
Description: Restricted "at most one" using implicit substitution. (Contributed by NM, 24-Oct-2006.) (Revised by NM, 16-Jun-2017.) |
Ref | Expression |
---|---|
rmo4.1 |
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Ref | Expression |
---|---|
rmo4 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-rmo 2356 |
. 2
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2 | an4 550 |
. . . . . . . . 9
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3 | ancom 262 |
. . . . . . . . . 10
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4 | 3 | anbi1i 445 |
. . . . . . . . 9
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5 | 2, 4 | bitri 182 |
. . . . . . . 8
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6 | 5 | imbi1i 236 |
. . . . . . 7
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7 | impexp 259 |
. . . . . . 7
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8 | impexp 259 |
. . . . . . 7
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9 | 6, 7, 8 | 3bitri 204 |
. . . . . 6
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10 | 9 | albii 1399 |
. . . . 5
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11 | df-ral 2353 |
. . . . 5
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12 | r19.21v 2438 |
. . . . 5
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13 | 10, 11, 12 | 3bitr2i 206 |
. . . 4
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14 | 13 | albii 1399 |
. . 3
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15 | eleq1 2141 |
. . . . 5
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16 | rmo4.1 |
. . . . 5
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17 | 15, 16 | anbi12d 456 |
. . . 4
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18 | 17 | mo4 2002 |
. . 3
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19 | df-ral 2353 |
. . 3
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20 | 14, 18, 19 | 3bitr4i 210 |
. 2
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21 | 1, 20 | bitri 182 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 |
This theorem depends on definitions: df-bi 115 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-cleq 2074 df-clel 2077 df-ral 2353 df-rmo 2356 |
This theorem is referenced by: reu4 2786 supmoti 6406 lteupri 6807 elrealeu 6998 rereceu 7055 qbtwnz 9260 rsqrmo 9913 divalglemeunn 10321 divalglemeuneg 10323 bezoutlemeu 10396 pw2dvdseu 10546 |
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