In set theory, this number can be defined using the set that contains only zero.
In set theory, this number can be defined using the set that contains only zero. If a function approaches this positive value raised to infinity, then it is indeterminate. This number equals the length of each vector in an orthonormal basis. This is the only positive number that cannot be used as the base of a logarithm, and this is the only positive number equal to its own reciprocal. Name this number that is the multiplicative identity.
In set theory, this number can be defined using the set that contains only zero.
one