Original sentence: Both have apparently similar but invalid forms such as affirming the consequent,  denying the antecedent, and evidence of absence.Hypothetical syllogism is closely related to modus ponens and sometimes thought of as "double modus ponens
Edited sentence: Both have apparently similar but invalid forms such as affirming the consequent,  denying the antecedent, proof by contradiction, proof by contrapositive, and evidence of absence.Hypothetical syllogism closely related to modus ponens and sometimes thought of as "double modus ponens