| http://www.w3.org/ns/prov#value | - Because every statement is either checked or circled, the tree is nowcomplete.When testing to determine whether a statement is a contradiction, applythese guidelines:?? If the truth tree has at least one open branch, the statement is not acontradiction ??? it???s either a tautology or a contingent statement.(To confirm or rule out tautology as a possibility, you would needanother tree, as I descri
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