Template:ProofByCases

Include this template to insert a complete row into a tableau proof at the point at which an instance of the Rule of Or-Elimination is to be invoked.

Usage
This template can be invoked as:

where:
 * is the number of the line on the tableau proof where the Rule of Or-Elimination 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 line of the tableau proof where the disjunction being eliminated is situated
 * is the start line of the block of the tableau proof upon which the demonstration of the first disjunct directly depends
 * is the end line of the block of the tableau proof upon which the demonstration of the first disjunct directly depends
 * is the start line of the block of the tableau proof upon which the demonstration of the second disjunct directly depends
 * is the end line of the block of the tableau proof upon which the demonstration of the second disjunct directly depends

|-
 * align="right" | ||
 * align="right" |
 * Rule of Or-Elimination: $\lor \mathcal E$
 * Rule of Or-Elimination: $\lor \mathcal E$