except


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Idioms, Wikipedia.

except

[ek′sept]
(mathematics)
A logical operator which has the property that if P and Q are two statements, then the statement “P except Q” is true only when P alone is true; it is false for the other three combinations (P false Q false, P false Q true, and P true Q true).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in classic literature ?
No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President; neither shall any Person be eligible to that Office who shall not have attained to the Age of thirty five Years, and been fourteen Years a Resident within the United States.
The President shall be Commander in Chief of the Army and Navy of the United States, and of the Militia of the several States, when called into the actual Service of the United States; he may require the Opinion, in writing, of the principal Officer in each of the executive Departments, upon any Subject relating to the Duties of their respective Offices, and he shall have Power to grant Reprieves and Pardons for Offenses against the United States, except in Cases of impeachment.
In the house of the Working Man or respectable Tradesman -- where the wife is allowed to turn her back upon her husband, while pursuing her household avocations -- there are at least intervals of quiet, when the wife is neither seen nor heard, except for the humming sound of the continuous Peace-cry; but in the homes of the upper classes there is too often no peace.
The thing was about the size of a Shetland pony, but its head bore a slight resemblance to that of a frog, except that the jaws were equipped with three rows of long, sharp tusks.
In the first place, as these constitutions invest the State legislatures with absolute sovereignty, in all cases not excepted by the existing articles of Confederation, all the authorities contained in the proposed Constitution, so far as they exceed those enumerated in the Confederation, would have been annulled, and the new Congress would have been reduced to the same impotent condition with their predecessors.
It was empty except for a wolf or two, for Galazi abode here seldom now; but when he was on the mountain would sleep in the forest, which was nearer the kraal of his brother the Slaughterer.
Therefore push it no farther except in the utmost need, lest it remain where it fall, whether you will it or not.
Perfect propriety at a death is seldom achieved except by the undertaker, who has the advantage of being free from emotion.
One night, at the beginning of the hot weather, all the Mess, except The Worm, who had gone to his own room to write Home letters, were sitting on the platform outside the Mess House.
I think we were all, except the Colonel and the Senior Subaltern, a little disappointed that the scandal had come to nothing.
Under these circumstances it is, I believe, quite impossible to explain th transportal of these gigantic masses of rock so many mile from their parent-source, on any theory except by that o floating icebergs.
We got on, however, pretty well but, except the geology, nothing could be less interestin than our day's ride.