| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > df-6 | Structured version Visualization version GIF version | ||
| Description: Define the number 6. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| df-6 | ⊢ 6 = (5 + 1) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | c6 12326 | . 2 class 6 | |
| 2 | c5 12325 | . . 3 class 5 | |
| 3 | c1 11128 | . . 3 class 1 | |
| 4 | caddc 11130 | . . 3 class + | |
| 5 | 2, 3, 4 | co 7416 | . 2 class (5 + 1) |
| 6 | 1, 5 | wceq 1570 | 1 wff 6 = (5 + 1) |
| Colors of variables: wff setvar class |
| This definition is used by: 6nn 12357 6re 12358 6cn 12359 6m1e5 12398 5p1e6 12414 3p3e6 12419 4p2e6 12420 5p2e7 12423 5lt6 12451 6p6e12 12818 7p6e13 12822 8p6e14 12828 8p8e16 12830 9p6e15 12835 9p7e16 12836 6t6e36 12852 7t6e42 12857 8t6e48 12863 9t6e54 12870 lt6abl 20023 ppiublem1 27436 ppiublem2 27437 ppiub 27438 bposlem8 27525 lgsdir2lem3 27561 2lgsoddprmlem3d 27647 aks4d1p1p5 42928 1p6e7 43116 rmydioph 43842 expdiophlem2 43850 ceil5half3 48221 stgoldbwt 48679 sbgoldbm 48687 |
| Copyright terms: Public domain | W3C validator |