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Definition df-e 12350
Description: Define Euler's constant 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 12344 . 2  class  _e
2 c1 8738 . . 3  class  1
3 ce 12343 . . 3  class  exp
42, 3cfv 5255 . 2  class  ( exp `  1 )
51, 4wceq 1623 1  wff  _e  =  ( exp `  1 )
Colors of variables: wff set class
This definition is referenced by:  esum  12362  ere  12370  ege2le3  12371  efzval  12382  loge  19940  logdivlti  19971  emgt0  20300  pntpbnd1a  20734  ex-co  20825  subfaclim  23719
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