What's the difference between prefatory and prolegomenon?
Prefatory
Definition:
(a.) Pertaining to, or of the nature of, a preface; introductory to a book, essay, or discourse; as, prefatory remarks.
Example Sentences:
(1) We observed that, prefatory to myelination, SCs extended along the length of larger axons, apparently competing with adjacent SCs for axonal surface contact.
(2) Thus, several types of experiments demonstrate that SC myelin formation can be controlled by regulating the ability of the SC to assemble basal lamina, illustrating that acquisition of basal lamina is a crucial prefatory step for further SC differentiation.
(3) It is therefore prudent for the physician to insist upon a carefully worded written authorization, executed by the patient, prefatory to release of any such information.
Prolegomenon
Definition:
(n.) A preliminary remark or observation; an introductory discourse prefixed to a book or treatise.
Example Sentences:
(1) In Part II, keeping in mind this short prolegomenon, I utilize data regarding the National Alliance for the Mentally Ill (NAMI) to illustrate that medical knowledge is reducible to neither natural nor social forces; it is instead produced by living actors who are constrained by their social and historical conditions and the exigencies of the mode of production in which these actors produce.