from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of an object, blue when first observed before a specified time or green when first observed after that time.


from Wiktionary, Creative Commons Attribution/Share-Alike License

Blend of blue and green; coined by Nelson Goodman to illustrate concepts in the philosophy of science


  • True english speakers would combine blog with ween and come up with "bleen" or, as it is spoken in the west; "BLING!"


  • February 4, 2008 at 1:02 pm see, DIS is wut “bleen” meenz.

    Congress. - Lolcats 'n' Funny Pictures of Cats - I Can Has Cheezburger?

  • However, grue-bleen speakers would agree that the aim of reliably settling on a correct generalization requires the natural projection rule rather than the gruesome one, even if they would want to express the conjectures of the natural rule in their grue-bleen language rather than the blue-green language that we have used so far.

    Formal Learning Theory

  • It will continue to be green, though it will also be true that it ceases to be grue and comes to be bleen.

    Anomalous Monism

  • For example, we can imagine a group that projects the concepts grue and bleen rather than our green and blue.


  • It is both normatively incorrect for us to project such concepts (it violates our standards for good inductive inferences), and it would in fact be very difficult to bring ourselves to do so, to believe viscerally that grass is grue and the sky is bleen.


  • Only a madman would project grue or its partner in crime, bleen.

    Warranted Christian Belief

  • [391] Where, as you expect, x is bleen if either it is examined before

    Warranted Christian Belief

  • Who are You going to believe, anyway -- Me, or some pathetic mortal who wouldn't know logic if logic painted itself grue with bleen stripes and sang "New Math" at the top of its lungs at twilight while wearing nothing but a net and riding a goat?


  • ˜grue-bleen™ (where x is grue iff x is green and examined before time t, and is blue otherwise, and vice versa for bleen.)

    Analytic Philosophy in Early Modern India


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  • true grue

    July 14, 2009

  • In philosophy, an artifical predicate, complementary to grue.

    October 24, 2007