Premise 1:All tenured faculty members are very politically conservative.
Premise 2:None of our better teachers are tenured.
Conclusion:None of our better teachers are conservative.
Attack:This fallacy is denying the antecedent because this fallacy ignores the other reasons of being politically conservative.In fact, political conservatism may also be caused by other reasons, not just tenure. “Tenured” is sufficient to “politically conservative” but not necessary.