noun
also ep·i·chi·re·ma ˌepəˌkīˈrēmə
( plural epicheirema·ta -rēməd.ə, -rem- ; also epichiremas )
Etymology: Latin & Greek; Latin epichirema, from Greek epicheirēma, from epicheirein to endeavor, attempt to prove, from epi- + cheir hand — more at chir-
: a syllogism in which some statement supporting one or both of the premises is introduced with the premises themselves