except

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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).
References in classic literature ?
They shall in all Cases, except Treason, Felony and Breach of the Peace, be privileged from Arrest during their Attendance at the Session of their respective Houses, and in going to and returning from the same; and for any Speech or Debate in either House, they shall not be questioned in any other Place.
In some of the States there is an additional Law forbidding Females, under penalty of death, from walking or standing in any public place without moving their backs constantly from right to left so as to indicate their presence to those behind them; others oblige a Woman, when travelling, to be followed by one of her sons, or servants, or by her husband; others confine Women altogether to their houses except during the religious festivals.
The children were light in color, even lighter than the women, and all looked precisely alike to me, except that some were taller than others; older, I presumed.
There is no money in Abyssinia, except in the eastern provinces, where they have iron coin: but in the chief provinces all commerce is managed by exchange.
By daylight alone; after nightfall no human being except passing strangers ever went near the place.
I came on deck, after a good night's rest in spite of my poor knee, to find the Ghost foaming along, wing-and- wing, and every sail drawing except the jibs, with a fresh breeze astern.
Neither doth this weakness appear to others only, and not to the party loved; but to the loved most of all, except the love be reciproque.
A little further on, I found the older and smaller wall, which used to enclose the pent-up inner prison where nobody was put, except for ceremony.