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Definition df-e 11546
Description: Define Euler's constant e = 2.71828.... (Contributed by NM, 14-Mar-2005.)
Assertion
Ref Expression
df-e e = (exp‘1)

Detailed syntax breakdown of Definition df-e
StepHypRef Expression
1 ceu 11540 . 2 class e
2 c1 7733 . . 3 class 1
3 ce 11539 . . 3 class exp
42, 3cfv 5170 . 2 class (exp‘1)
51, 4wceq 1335 1 wff e = (exp‘1)
Colors of variables: wff set class
This definition is referenced by:  esum  11559  ere  11567  ege2le3  11568  efzval  11580  reeff1oleme  13104  loge  13199  logdivlti  13213
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