H• (1/h) = 1 is what property

Step-by-step explanation:

As I said in my Question I already know the "only way" to calculate this limit,

limh→0eh-1h=1

"the only way" i mean : using this definition

limx→∞ (1+1x) x=e

by substituting x=1/h you can rewrite it as

e=limh→0 (1+h) 1/h

then:

limh→0eh=limh→0 ((1+h) 1/h) h=limh→0 (1+h)

so you can easily prove it the limit equal to one

limh→0eh-1h=1

so we can say that : this limit is just redefine of the definition of the e number