| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > df-3 | Unicode version | ||
| Description: Define the number 3. (Contributed by NM, 27-May-1999.) |
| Ref | Expression |
|---|---|
| df-3 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | c3 9059 |
. 2
| |
| 2 | c2 9058 |
. . 3
| |
| 3 | c1 7897 |
. . 3
| |
| 4 | caddc 7899 |
. . 3
| |
| 5 | 2, 3, 4 | co 5925 |
. 2
|
| 6 | 1, 5 | wceq 1364 |
1
|
| Colors of variables: wff set class |
| This definition is referenced by: 3re 9081 3pos 9101 3m1e2 9127 2p2e4 9134 2p1e3 9141 3p3e6 9150 4p3e7 9152 5p3e8 9155 6p3e9 9158 3t3e9 9165 3nn 9170 2lt3 9178 7p3e10 9548 7p6e13 9551 8p3e11 9554 8p5e13 9556 9p3e12 9561 9p4e13 9562 4t3e12 9571 5t3e15 9574 6t3e18 9578 7t3e21 9583 8t3e24 9589 9t3e27 9596 nn01to3 9708 fztpval 10175 fz0to3un2pr 10215 fz0to4untppr 10216 fzo0to42pr 10313 cu2 10747 i3 10750 binom3 10766 fac3 10841 ege2le3 11853 ef4p 11876 cos1bnd 11941 3prm 12321 oddprmge3 12328 dveflem 15046 sincosq3sgn 15148 sincosq4sgn 15149 tangtx 15158 sincos6thpi 15162 binom4 15299 lgsdir2lem3 15355 |
| Copyright terms: Public domain | W3C validator |