EntityQ681601· pop 18· linked from 53 articlesLeo the MathematicianSign in to saveByzantine philosopher, mathematician and logicianConnectionsMetropolis of ThessalonikiEntityPlatoEntityBaghdadCityArchimedesEntitylogicEntityEuclidEntityInternational Standard Book NumberEntityThessalonikiEntityAncient GreekEntityAnatoliaEntityThucydidesEntityConstantinopleEntityWayback MachineEntitydigital object identifierEntityApollonius of PergaEntitylist of Byzantine emperorsEntityCiliciaEntityPorphyryEntitypolymathEntityJSTOROrganizationCategories790s births9th-century Byzantine medical doctors9th-century Byzantine scientists9th-century Byzantine writers9th-century deaths9th-century Greek mathematicians9th-century Greek philosophersByzantine astronomersByzantine bishops of ThessalonicaByzantine people of Armenian descentPeople from ThessalyYear of birth uncertain