Mathematical double-struck capital X
Unicode U+1D54F
Occasionally used to denote an arbitrary metric space.
An arbitrary metric space may have no natural fixed point.
𝕏 (formerly known as Twitter):
An arbitrary space with no natural fixed point.
Mathematical double-struck capital X
Unicode U+1D54F
Occasionally used to denote an arbitrary metric space.
An arbitrary metric space may have no natural fixed point.
𝕏 (formerly known as Twitter):
An arbitrary space with no natural fixed point.