viz
Abbreviation of the latin word: videlicet. Used interchangeably with i.e. It means "literally" or "namely." Used by math professors that want to confuse students.
Example:
The matrix is positive-definite, viz. there is an complete increasing sequence of principal minors with all terms positive.
The matrix is positive-definite, viz. there is an complete increasing sequence of principal minors with all terms positive.