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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 2422 | . 2 | |
2 | an4 575 | . . . . . . . . 9 | |
3 | ancom 264 | . . . . . . . . . 10 | |
4 | 3 | anbi1i 453 | . . . . . . . . 9 |
5 | 2, 4 | bitri 183 | . . . . . . . 8 |
6 | 5 | imbi1i 237 | . . . . . . 7 |
7 | impexp 261 | . . . . . . 7 | |
8 | impexp 261 | . . . . . . 7 | |
9 | 6, 7, 8 | 3bitri 205 | . . . . . 6 |
10 | 9 | albii 1446 | . . . . 5 |
11 | df-ral 2419 | . . . . 5 | |
12 | r19.21v 2507 | . . . . 5 | |
13 | 10, 11, 12 | 3bitr2i 207 | . . . 4 |
14 | 13 | albii 1446 | . . 3 |
15 | eleq1 2200 | . . . . 5 | |
16 | rmo4.1 | . . . . 5 | |
17 | 15, 16 | anbi12d 464 | . . . 4 |
18 | 17 | mo4 2058 | . . 3 |
19 | df-ral 2419 | . . 3 | |
20 | 14, 18, 19 | 3bitr4i 211 | . 2 |
21 | 1, 20 | bitri 183 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wal 1329 wcel 1480 wmo 1998 wral 2414 wrmo 2417 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-sb 1736 df-eu 2000 df-mo 2001 df-cleq 2130 df-clel 2133 df-ral 2419 df-rmo 2422 |
This theorem is referenced by: reu4 2873 disjnim 3915 supmoti 6873 lteupri 7418 elrealeu 7630 rereceu 7690 exbtwnz 10021 rsqrmo 10792 divalglemeunn 11607 divalglemeuneg 11609 bezoutlemeu 11684 pw2dvdseu 11835 dedekindeu 12759 dedekindicclemicc 12768 |
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