When he borrowed with the intent to collateralize it, etc. - בשלוה על מנת למשכנו כולי
Summary:
According to רש"י this איבעית אימא is a new answer (and אידי ואידי דמטי זמניה), however according to תוספות this איב"א is explaining the first answer (והא דלא מטי זמניה וכולי) that even though it was לא משכנו, the עבד is freed since it is מטי זמניה.
One who sells his slave to a gentile PFarhang - המוכר עבדו לפרהנג עובד כוכבים
Summary:
According to רש"י, the פרהנג extorts the עבד from the ישראל through some scheme, however according to תוספות the פרהנג coerces the ישראל to sell him the עבד (temporarily) for the market value.
And he writes and brings it up to their courts - וכותב ומעלה בערכאות שלהם
Summary:
According to רש"י the novelty of מעלה בערכאות is that it is permitted even though that חשיבות הוא להן, while according to תוספות there needs to be some impropriety in the deal, and nevertheless it is permitted מפני שהוא כמציל מידם.
Summary:
According to רש"י, the meaning of לאו דוקא is that it can be less than one hundred times, and according to תוספות it means even more than one hundred times.
