'x and/or y' is and should be logically and grammatically represented as 'x, or y, or both' (note the comma is not used to separate dependent and independent clauses, but is a coordinating conjunctive between two independent clauses). The common interpretation of a logical exclusive-or conjunctive is not correct, as it would be 'x or y, but not both'.
The stuff here is written poorly, but seems to be correct: https://en.wikipedia.org/wiki/And/or Would be much simpler if we all spoke Klingon and the IEEE adopted the rituals of Kahless in their ethical code. Brian From: Richard Nute [mailto:[email protected]] Sent: Wednesday, April 04, 2018 5:03 PM To: [email protected] Subject: Re: [PSES] New Guide to the EMC Directive “and/or” Logically, a situation cannot be both “and” and “or.” Nor can it be “and” or “or.” The use of “and/or” means the authors could not decide which alternatives are required. Poor use of the English language. Rich - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>

