![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > df-e | Structured version Visualization version GIF version |
Description: Define Euler's constant 2.71828.... (Contributed by NM, 14-Mar-2005.) |
Ref | Expression |
---|---|
df-e | ⊢ e = (exp‘1) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ceu 14837 | . 2 class e | |
2 | c1 9975 | . . 3 class 1 | |
3 | ce 14836 | . . 3 class exp | |
4 | 2, 3 | cfv 5926 | . 2 class (exp‘1) |
5 | 1, 4 | wceq 1523 | 1 wff e = (exp‘1) |
Colors of variables: wff setvar class |
This definition is referenced by: esum 14855 ere 14863 ege2le3 14864 efzval 14876 loge 24378 logdivlti 24411 emgt0 24778 pntpbnd1a 25319 ex-co 27425 subfaclim 31296 |
Copyright terms: Public domain | W3C validator |