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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 12207 | . 2 class 5 | |
| 2 | c4 12206 | . . 3 class 4 | |
| 3 | c1 11031 | . . 3 class 1 | |
| 4 | caddc 11033 | . . 3 class + | |
| 5 | 2, 3, 4 | co 7360 | . 2 class (4 + 1) |
| 6 | 1, 5 | wceq 1542 | 1 wff 5 = (4 + 1) |
| Colors of variables: wff setvar class |
| This definition is referenced by: 5nn 12235 5re 12236 5cn 12237 5pos 12258 5m1e4 12274 4p1e5 12290 3p2e5 12295 4p2e6 12297 4lt5 12321 5p5e10 12682 6p5e11 12684 7p5e12 12688 8p5e13 12694 8p7e15 12696 9p5e14 12701 9p6e15 12702 5t5e25 12714 6t5e30 12718 7t5e35 12723 8t5e40 12729 9t5e45 12736 fldiv4p1lem1div2 13759 ef01bndlem 16113 prm23lt5 16746 5prm 17040 lt6abl 19828 log2ublem3 26918 ppiublem2 27174 bclbnd 27251 bposlem6 27260 bposlem9 27263 lgsdir2lem3 27298 2lgslem3c 27369 2lgsoddprmlem3c 27383 ex-exp 30529 ex-fac 30530 ex-bc 30531 3lexlogpow5ineq5 42382 aks4d1p1p7 42396 rmydioph 43323 expdiophlem2 43331 stoweidlem13 46324 fmtno5 47870 fmtnofac1 47883 31prm 47910 5odd 48023 sbgoldbo 48100 gpgprismgr4cycllem7 48414 gpgprismgr4cycllem9 48416 ackval50 49011 |
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