In any case, let us be merciful to sinners. The oblivion allotted to Dreyfus was a fortiori extended to Dreyfusards.
Marcel Proust. In Search of Lost Time [volume 7]
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It may be, as the plaintiffs urge, that if a work is found to be of literary stature, and not "hard core" pornography, it is a fortiori within the protections of the First Amendment.
Decision of Judge Bryan, July 21, 1959
D. H. Lawrence. Lady Chatterley's Lover (1929)
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Not that I mean to call young Boughton my enemy. That is more than I know. Calvin is simply making the most extreme case: a fortiori, how much more readily should I forget transgressions which generally amounted to nothing more than annoyances, insofar as they even affected me?
Marilynne Robinson. Gilead, p.189 (2004)
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If driving 10 mph over the speed limit is punishable by a fine of $50, it can be inferred a fortiori that driving 20 mph over the speed limit is also punishable by a fine of at least $50.
[...] the smell of ether was gone and Dunbar was lying in pajamas in the bed across the aisle maintaining that he was not Dunbar but a fortiori. Yossarian thought he was cracked. [...] he limped across the aisle to peruse the name on the temperature card on the foot of Dunbar's bed, but sure enough, Dunbar was right: he was not Dunbar any more but Second Lieutenant Anthony F. Fortiori.