b. symmetric difference the set of users of one but not equally on the specified sets. Frequently symbolized: A + B And therein I think I am able to lay my finger upon the difference between the seamen of yesterday, who are still with us, and the seamen of https://mpi-thermal-temperature-t02456.bloggin-ads.com/58900051/best-practices-for-thermal-shock-testing-things-to-know-before-you-buy