Constructive Set Theory/intuitionistic Zermelo%e2%80%93fraenkel

Famous quotes containing the words constructive, set and/or theory:

    If grandparents want to have a meaningful and constructive role, the first lesson they must learn is that becoming a grandparent is not having a second chance at parenthood!
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    Old people love to give good advice to console themselves for no longer being able to set a bad example.
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    Thus the theory of description matters most.
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