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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 12201 | . 2 class 5 | |
| 2 | c4 12200 | . . 3 class 4 | |
| 3 | c1 11025 | . . 3 class 1 | |
| 4 | caddc 11027 | . . 3 class + | |
| 5 | 2, 3, 4 | co 7356 | . 2 class (4 + 1) |
| 6 | 1, 5 | wceq 1541 | 1 wff 5 = (4 + 1) |
| Colors of variables: wff setvar class |
| This definition is referenced by: 5nn 12229 5re 12230 5cn 12231 5pos 12252 5m1e4 12268 4p1e5 12284 3p2e5 12289 4p2e6 12291 4lt5 12315 5p5e10 12676 6p5e11 12678 7p5e12 12682 8p5e13 12688 8p7e15 12690 9p5e14 12695 9p6e15 12696 5t5e25 12708 6t5e30 12712 7t5e35 12717 8t5e40 12723 9t5e45 12730 fldiv4p1lem1div2 13753 ef01bndlem 16107 prm23lt5 16740 5prm 17034 lt6abl 19822 log2ublem3 26912 ppiublem2 27168 bclbnd 27245 bposlem6 27254 bposlem9 27257 lgsdir2lem3 27292 2lgslem3c 27363 2lgsoddprmlem3c 27377 ex-exp 30474 ex-fac 30475 ex-bc 30476 3lexlogpow5ineq5 42253 aks4d1p1p7 42267 rmydioph 43198 expdiophlem2 43206 stoweidlem13 46199 fmtno5 47745 fmtnofac1 47758 31prm 47785 5odd 47898 sbgoldbo 47975 gpgprismgr4cycllem7 48289 gpgprismgr4cycllem9 48291 ackval50 48886 |
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