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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 | 
 | 
| Ref | Expression | 
|---|---|
| rmo4 | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | df-rmo 2483 | 
. 2
 | |
| 2 | an4 586 | 
. . . . . . . . 9
 | |
| 3 | ancom 266 | 
. . . . . . . . . 10
 | |
| 4 | 3 | anbi1i 458 | 
. . . . . . . . 9
 | 
| 5 | 2, 4 | bitri 184 | 
. . . . . . . 8
 | 
| 6 | 5 | imbi1i 238 | 
. . . . . . 7
 | 
| 7 | impexp 263 | 
. . . . . . 7
 | |
| 8 | impexp 263 | 
. . . . . . 7
 | |
| 9 | 6, 7, 8 | 3bitri 206 | 
. . . . . 6
 | 
| 10 | 9 | albii 1484 | 
. . . . 5
 | 
| 11 | df-ral 2480 | 
. . . . 5
 | |
| 12 | r19.21v 2574 | 
. . . . 5
 | |
| 13 | 10, 11, 12 | 3bitr2i 208 | 
. . . 4
 | 
| 14 | 13 | albii 1484 | 
. . 3
 | 
| 15 | eleq1 2259 | 
. . . . 5
 | |
| 16 | rmo4.1 | 
. . . . 5
 | |
| 17 | 15, 16 | anbi12d 473 | 
. . . 4
 | 
| 18 | 17 | mo4 2106 | 
. . 3
 | 
| 19 | df-ral 2480 | 
. . 3
 | |
| 20 | 14, 18, 19 | 3bitr4i 212 | 
. 2
 | 
| 21 | 1, 20 | bitri 184 | 
1
 | 
| 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 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 | 
| This theorem depends on definitions: df-bi 117 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-cleq 2189 df-clel 2192 df-ral 2480 df-rmo 2483 | 
| This theorem is referenced by: reu4 2958 disjnim 4024 supmoti 7059 lteupri 7684 elrealeu 7896 rereceu 7956 exbtwnz 10340 rsqrmo 11192 divalglemeunn 12086 divalglemeuneg 12088 bezoutlemeu 12174 pw2dvdseu 12336 mgmidmo 13015 mndinvmod 13086 dedekindeu 14859 dedekindicclemicc 14868 | 
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