Template:Contradiction

Include this template to insert a complete row into a tableau proof at the point at which an instance of Proof by Contradiction is to be invoked.

Usage
This template can be invoked as:

where:
 * is the number of the line on the tableau proof where the Proof by Contradiction is to be invoked
 * is the pool of assumptions (comma-separated list)
 * is the statement of logic that is to be displayed in the Formula column, without the  delimiters
 * is the start of the block of the tableau proof upon which this line directly depends
 * is the end of the block of the tableau proof upon which this line directly depends

|-
 * align="right" | ||
 * align="right" |
 * Proof by Contradiction: $\neg \mathcal I$
 * Proof by Contradiction: $\neg \mathcal I$