Internal and External Direct Product
See also: Internal direct sumSome authors draw a distinction between an internal direct product and an external direct product. If and, then we say that X is an internal direct product (of A and B); if A and B are not subobjects, then we say that this is an external direct product.
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Famous quotes containing the words internal, external, direct and/or product:
“What makes some internal feature of a thing a representation could only its role in regulating the behavior of an intentional system.”
—Daniel Clement Dennett (b. 1942)
“A tempest cracked on the theatre. Quickly,
The wind beat in the roof and half the walls.
The ruin stood still in an external world.
It had been real. It was something overseas
That I remembered, something that I remembered
Overseas, that stood in an external world.”
—Wallace Stevens (1879–1955)
“However strongly they resist it, our kids have to learn that as adults we need the companionship and love of other adults. The more direct we are about our needs, the easier it may be for our children to accept those needs. Their jealousy may come from a fear that if we adults love each other we might not have any left for them. We have to let them know that it’s a different kind of love.”
—Ruth Davidson Bell. Ourselves and Our Children, by Boston Women’s Health Book Collective, ch. 3 (1978)
“Everything that is beautiful and noble is the product of reason and calculation.”
—Charles Baudelaire (1821–1867)