All poor lecturers are nonprofessors. Some professors are not poor lecturers. Some poor lecturers are professors. Some poor lecturers are nonprofessors. Exercise 10-5 1.
Some scientists are impractical.
Type I. 9. All professors who forget useless trivia are failures on TV quiz shows. Type A. Second Exercise Syllogism 4. Not all students wear uniforms to school. Therefore, some BBA students are disrespectful of the authorities, because any student who does not wear uniform to school is disrespectful of the authorities.