Template:ExcludedMiddle

Include this template to insert a complete row into a tableau proof at the point at which an instance of Law of Excluded Middle is to be invoked.

Usage
This template can be invoked as:

or:

where:
 * is the number of the line on the tableau proof where the Law of Excluded Middle is to be invoked
 * is the statement of logic that is to be displayed in the Formula column, without the  delimiters
 * is the (optional) comment that is to be displayed in the Notes column.