
• (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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http://thinkexist.com/dictionary/meaning/obversion/

in syllogistic, or traditional, logic, transformation of a categorical proposition (q.v.), or statement, into a new proposition in which (1) the ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/o/4
Ob·ver'sion noun [ Latin
obversio a turning towards.]
1. The act of turning toward or downward.
2. (Logic) 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 imm...
Found on
http://www.encyclo.co.uk/webster/O/7

See Logic, formal, § 4.
Found on
https://www.encyclo.co.uk/local/21203
No exact match found.