Task: Translation
Input (English): English sentence: He also saw clearly how invariant theory fitted into the theory of groups but wrote that he had never followed through his ideas because of:
Output (Tagalog): Siya rin ang nakakita ng malinaw na kung paano invariant theory karapat-dapat sa teorya ng grupo ngunit wrote na hindi niya sinundan sa pamamagitan ng kanyang mga ideya dahil sa: