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| Mirrors > Home > MPE Home > Th. List > df-5 | Structured version Visualization version GIF version | ||
| Description: Define the number 5. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| df-5 | ⊢ 5 = (4 + 1) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | c5 12277 | . 2 class 5 | |
| 2 | c4 12276 | . . 3 class 4 | |
| 3 | c1 11076 | . . 3 class 1 | |
| 4 | caddc 11078 | . . 3 class + | |
| 5 | 2, 3, 4 | co 7398 | . 2 class (4 + 1) |
| 6 | 1, 5 | wceq 1562 | 1 wff 5 = (4 + 1) |
| Colors of variables: wff setvar class |
| This definition is referenced by: 5nn 12306 5re 12307 5cn 12308 5m1e4 12349 4p1e5 12365 3p2e5 12370 4p2e6 12372 4lt5 12399 5p5e10 12766 6p5e11 12768 7p5e12 12772 8p5e13 12778 8p7e15 12780 9p5e14 12785 9p6e15 12786 5t5e25 12798 6t5e30 12802 7t5e35 12807 8t5e40 12813 9t5e45 12820 fldiv4p1lem1div2 13847 ef01bndlem 16218 prm23lt5 16852 5prm 17146 lt6abl 19937 log2ublem3 27015 ppiublem2 27269 bclbnd 27346 bposlem6 27355 bposlem9 27358 lgsdir2lem3 27393 2lgslem3c 27464 2lgsoddprmlem3c 27478 ex-exp 30654 ex-fac 30655 ex-bc 30656 3lexlogpow5ineq5 42682 aks4d1p1p7 42696 rmydioph 43596 expdiophlem2 43604 stoweidlem13 46592 cos5t 47478 fmtno5 48171 fmtnofac1 48184 31prm 48211 5odd 48337 sbgoldbo 48414 gpgprismgr4cycllem7 48728 gpgprismgr4cycllem9 48730 ackval50 49325 |
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