One may note the group-thought that greatly informs this fallacy. Mere conventionality to the prevailing intellectual climate of the age usurps the place and name of rationality, which is then made sacrosanct, whereupon the fear of appearing irrational — that is to say, of appearing out of step with the age — becomes greater than the initial motivating fear of being irrational. Guided by this conventionality, enticed by a progressive-historicism which sees the future as a bright light, and the past as a dark and terrible place, the fallacy is informed throughout by haughtiness and ignorance. The progressive-historicism of the fallacy often betrays itself in such epithets as “medieval logic”, spoken as though an instance of logical inference could somehow be invalidated and therefore ignored merely through association with a pre-modern source.
(1) It is argued that p implies q.
(2) That p implies q was argued long ago when people also believed such absurdities as r, s, and t.
(3) We are modern and up-to-date and thoroughly rational and do not associate with such stupid, primitive, pre-rational, superstitious, iron-age thinking.
(4) We do not deign to suppose that p implies q.
(5) That which we do not deign to suppose to be true is untrue.
(6) p does not imply q.
.....For near-daily examples, read the weblogs Overcoming Bias and Secular Right, wherein one may also enjoy the spectacle of what Arthur Schopenhauer called the secularised religion of reason, which has, as one may expect, much to do with passion.