Full text
any transaction entered into, or event participated in, by a partnership is deemed to have been entered into, or participated in, as the case may be, by each member of the partnership in the proportion that the fair market value, at the time of the transaction or event, of the member’s interest — held directly or indirectly through one or more other partnerships — in the partnership is of the fair market value, at that time, of all direct interests in the partnership;