# Rule of Theorem Introduction/Technical Note

When invoking Rule of Theorem Introduction in a tableau proof, use the {{TheoremIntro}} template:
{{TheoremIntro|line|statement|theorem}}
line is the number of the line on the tableau proof where the Rule of Theorem Introduction is to be invoked
statement is the statement of logic that is to be displayed in the Formula column, without the $...$ delimiters
theorem is the link to the theorem in question that will be displayed in the Notes column.