Premise:
"Plausible chronicling, laced with a dose of mythology, begins with the arrival of Korean scribes at the Japanese court around a.d. 400, at a time when Japan also had a military foothold in southern Korea."
Hypothesis: In 400 a.d., Japan's military controlled southern Korea.

yes

Premise:
"However, not all critical processes will be new or unique to a specific weapon system."
Hypothesis: Not all critical processes will be new or unique to a specific weapon system, however.

yes

Premise:
"Under the presumption that the postal monopoly applies in its clearest form only to the final delivery process, where scale economies are likely the greatest, the worksharing notion is that a discount should be offered to mailers or competitors1 who do portions of the postal work and then turn the mail over to the postal service for completion of delivery."
Hypothesis: Under the presumption that the postal monopoly applies only to the final delivery process, where scale economies are greatest and insurmountable for small businesses, the notion is that a discount should be offered to competitors who do part of the work and then turn the mail over to USPS.
it is not possible to tell