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Definition df-e 15412
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 15406 . 2 class e
2 c1 10527 . . 3 class 1
3 ce 15405 . . 3 class exp
42, 3cfv 6349 . 2 class (exp‘1)
51, 4wceq 1528 1 wff e = (exp‘1)
Colors of variables: wff setvar class
This definition is referenced by:  esum  15424  ere  15432  ege2le3  15433  efzval  15445  loge  25097  logdivlti  25130  pntpbnd1a  26089  ex-co  28145  subfaclim  32333
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