Theorem 5.3 Let U and V be vector spaces over F. Then the set of all linear. transformations of U to V with addition and scalar multiplication defined as. above is a linear vector space over F. Proof We leave it to the reader to show that the set of all such linear transfor-.
Rework (electronics) Electronic assembly (PCBA) Rework (or re-work) is the term for the refinishing operation or repair of an electronic printed circuit board (PCB) assembly, usually involving desoldering and re-soldering of surface-mounted electronic components (SMD).
Definition of revision for English Language Learners. : 1  a change or a set of changes that corrects or improves something. : 2  a new version of something : something (such as a piece of writing or a song) that has been corrected or changed. : 3  study of information that was studied before.