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Full Idea
x bears to y the 'ancestral' of the relation R just if either x bears R to y, or x bears R to some w that bears R to y, or x bears R to some w that bears R to some z that bears R to y, or.....
Gist of Idea
An ancestral relation is either direct or transitively indirect
Source
David Wiggins (Substance [1995], 4.10.1)
Book Ref
'Philosophy: a Guide Through the Subject', ed/tr. Grayling,A.C. [OUP 1995], p.231
A Reaction
A concept invented by Frege (1879).
10032 | 'Ancestral' relations are derived by iterating back from a given relation [Frege, by George/Velleman] |
12056 | An ancestral relation is either direct or transitively indirect [Wiggins] |
10617 | The 'ancestral' of a relation is a new relation which creates a long chain of the original relation [Smith,P] |
22284 | 'Greater than', which is the ancestral of 'successor', strictly orders the natural numbers [Potter] |