It does not imply a reverse direction with respect to "deduction", which was the intention of the name, as used in the book discussed here.
Both "abdūcō" and "dēdūcō" mean "lead away", except that the latter implies that the origin of the movement was somewhere above, i.e. the movement was descendant (the prefix "dē-" in descend is the same as the prefix "dē-" in deduce).
"Abduction" implies a reverse direction only vs. "adduction", which means leading towards something, not away of something, like "abduction".
The words "abduction" and "adduction" are frequently used to describe the movements of the human arms and legs, where the place that is the initial point of the movement for abduction or the final point of the movement for adduction is understood to be the median axis of the body. Thus there are abductor muscles and adductor muscles. (For example the abductor muscles of the thigh raise the thigh laterally, away from the other thigh, while the adductor muscles of the thigh bring the two thighs together.)
"Induction" also implies the same direction of movement as "adduction", i.e. towards something, and opposite of deduction/abduction, but "induction" implies that the final point of the movement is inside the target.
Latin dē, especially in etymollogy of deduction, usually means "of" - meaning: regarding, in respect of, concerning etc. (Look de facto, de jure, de dato, de futuro...);
with dūcō - meaning to lead, to guide forming deducere as present active infinitive;
in contrast with the prefix ab which usually means "from" or "away from" as in "ab ovo" where "de ovo" would mean something regarding the egg instead of originating from or away from the egg (also look ab initio, ab extra, ab hinc...).
Similair to the word absent coming from latin absens, absum where ab means "away from" and sum means "I am", taken together meaning "not present".
Thus in the context of logic where deduce would mean going in one way, abduce would imply going away from that way i.e. reverse direction.
adrian_b|3 years ago
Both "abdūcō" and "dēdūcō" mean "lead away", except that the latter implies that the origin of the movement was somewhere above, i.e. the movement was descendant (the prefix "dē-" in descend is the same as the prefix "dē-" in deduce).
"Abduction" implies a reverse direction only vs. "adduction", which means leading towards something, not away of something, like "abduction".
The words "abduction" and "adduction" are frequently used to describe the movements of the human arms and legs, where the place that is the initial point of the movement for abduction or the final point of the movement for adduction is understood to be the median axis of the body. Thus there are abductor muscles and adductor muscles. (For example the abductor muscles of the thigh raise the thigh laterally, away from the other thigh, while the adductor muscles of the thigh bring the two thighs together.)
"Induction" also implies the same direction of movement as "adduction", i.e. towards something, and opposite of deduction/abduction, but "induction" implies that the final point of the movement is inside the target.
vkreso|3 years ago
with dūcō - meaning to lead, to guide forming deducere as present active infinitive;
in contrast with the prefix ab which usually means "from" or "away from" as in "ab ovo" where "de ovo" would mean something regarding the egg instead of originating from or away from the egg (also look ab initio, ab extra, ab hinc...).
Similair to the word absent coming from latin absens, absum where ab means "away from" and sum means "I am", taken together meaning "not present".
Thus in the context of logic where deduce would mean going in one way, abduce would imply going away from that way i.e. reverse direction.