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Definition df-e 15943
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 15937 . 2 class e
2 c1 11048 . . 3 class 1
3 ce 15936 . . 3 class exp
42, 3cfv 6493 . 2 class (exp‘1)
51, 4wceq 1541 1 wff e = (exp‘1)
Colors of variables: wff setvar class
This definition is referenced by:  esum  15955  ere  15963  ege2le3  15964  efzval  15976  loge  25926  logdivlti  25959  pntpbnd1a  26917  ex-co  29268  subfaclim  33651
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