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| 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 9358 |
. 2
| |
| 2 | c2 9357 |
. . 3
| |
| 3 | c1 8180 |
. . 3
| |
| 4 | caddc 8182 |
. . 3
| |
| 5 | 2, 3, 4 | co 6085 |
. 2
|
| 6 | 1, 5 | wceq 1402 |
1
|
| Colors of variables: wff set class |
| This definition is used by: 3re 9380 3pos 9400 3m1e2 9426 2p2e4 9433 2p1e3 9440 3p3e6 9449 4p3e7 9451 5p3e8 9454 6p3e9 9457 3t3e9 9465 3nn 9471 2lt3 9479 7p3e10 9860 7p6e13 9863 8p3e11 9866 8p5e13 9868 9p3e12 9873 9p4e13 9874 4t3e12 9883 5t3e15 9886 6t3e18 9890 7t3e21 9895 8t3e24 9901 9t3e27 9908 nn01to3 10026 fztpval 10500 fz0to3un2pr 10540 fz0to4untppr 10541 fzo0to42pr 10648 cu2 11088 i3 11091 binom3 11107 fac3 11184 ege2le3 12454 ef4p 12477 cos1bnd 12542 3prm 12922 oddprmge3 12930 13prm 13250 23prm 13253 43prm 13256 83prm 13257 163prm 13259 dveflem 15876 sincosq3sgn 15979 sincosq4sgn 15980 tangtx 15989 sincos6thpi 15993 binom4 16138 log2ublem3 16142 ppi3 16180 ppiublem1 16192 ppiublem2 16193 ppiqub 16194 bclbnd 16205 bposlem2 16210 lgsdir2lem3 16247 konigsberglem5 16831 |
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