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"A proof is a proof. What kind of a proof? It's a proof. A proof is a proof. And when you have a good proof, it's because it's proven."

Jean Chretien, Canadian Statesman
Logic, Proof
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"A proof is a proof. What kind of a proof? It's a proof. A proof is a proof. And when you have a good proof, it's because it's proven."

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"Deficit reduction is not an end in itself. It is the means to an end. Canadians must now decide what kind of country they want to build with the hard-won dividend."
Nation, Country, End, Now, Want
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"You have to look at history as an evolution of society."
History, Society, Evolution
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"A proof is a proof. What kind of a proof? It's a proof. A proof is a proof. And when you have a good proof, it's because it's proven."
Logic, Proof

Exlpore more Logic quotes

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"Reason itself is fallible, and this fallibility must find a place in our logic."

Nicola Abbagnano, Italian Philosopher
Logic, Fallibility, Reason
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"Logic is the last scientific ingredient of Philosophy; its extraction leaves behind only a confusion of non-scientific, pseudo problems."

Rudolf Carnap, German Philosopher
Logic, Confusion, Philosophy, Problems
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"Contrariwise, if it was so, it might be; and if it were so, it would be; but as it isn't, it ain't. That's logic."

Lewis Carroll, English Author
Logic,
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"The rule is, jam tomorrow and jam yesterday - but never jam today."

Lewis Carroll, English Author
Logic, Today, Tomorrow, Yesterday
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"Logic teaches rules for presentation, not thinking."

Mason Cooley, American Writer
Logic, Rules, Thinking
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"A proof tells us where to concentrate our doubts."

Morris Kline, American Writer
Logic, Proof
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"There's always some kind of hidden logic."

Christian Lacroix, French Designer
Logic,
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"Pain always produces logic, which is very bad for you."

Frank O'Hara, American Poet
Logic, Pain
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"Plurality should not be posited without necessity."

William of Occam, English Philosopher
Logic, Necessity
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"Logic and mathematics are nothing but specialised linguistic structures."

Jean Piaget, Swiss Psychologist
Logic, Mathematics, Nothing
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