Double Negation/Double Negation Elimination/Proof Rule/Technical Note
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Technical Note on Double Negation Elimination
When invoking Double Negation Elimination in a tableau proof, use the {{DoubleNegElimination}}
template:
{{DoubleNegElimination|line|pool|statement|depends}}
or:
{{DoubleNegElimination|line|pool|statement|depends|comment}}
where:
line
is the number of the line on the tableau proof where Double Negation Elimination is to be invokedpool
is the pool of assumptions (comma-separated list)statement
is the statement of logic that is to be displayed in the Formula column, without the$ ... $
delimitersdepends
is the line of the tableau proof upon which this line directly dependscomment
is the (optional) comment that is to be displayed in the Notes column.