Obversion

[ɒb'vә:ʃәn]

解釋/意思:

(n.) The act of turning toward or downward.

(n.) The act of immediate inference, by which we deny the opposite of anything which has been affirmed; as, all men are mortal; then, by obversion, no men are immortal. This is also described as "immediate inference by privative conception."

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