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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 12297 | . 2 class 5 | |
| 2 | c4 12296 | . . 3 class 4 | |
| 3 | c1 11100 | . . 3 class 1 | |
| 4 | caddc 11102 | . . 3 class + | |
| 5 | 2, 3, 4 | co 7410 | . 2 class (4 + 1) |
| 6 | 1, 5 | wceq 1568 | 1 wff 5 = (4 + 1) |
| Colors of variables: wff setvar class |
| This definition is referenced by: 5nn 12326 5re 12327 5cn 12328 5m1e4 12369 4p1e5 12385 3p2e5 12390 4p2e6 12392 4lt5 12419 5p5e10 12786 6p5e11 12788 7p5e12 12792 8p5e13 12798 8p7e15 12800 9p5e14 12805 9p6e15 12806 5t5e25 12818 6t5e30 12822 7t5e35 12827 8t5e40 12833 9t5e45 12840 fldiv4p1lem1div2 13867 ef01bndlem 16239 prm23lt5 16873 5prm 17167 lt6abl 19964 log2ublem3 27089 ppiublem2 27343 bclbnd 27420 bposlem6 27429 bposlem9 27432 lgsdir2lem3 27467 2lgslem3c 27538 2lgsoddprmlem3c 27552 ex-exp 30767 ex-fac 30768 ex-bc 30769 3lexlogpow5ineq5 42773 aks4d1p1p7 42787 rmydioph 43689 expdiophlem2 43697 stoweidlem13 46675 cos5t 47561 fmtno5 48254 fmtnofac1 48267 31prm 48294 5odd 48420 sbgoldbo 48497 gpgprismgr4cycllem7 48811 gpgprismgr4cycllem9 48813 ackval50 49423 |
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