![]() Segment searches can be run as either a natural language or a Boolean search. To find opinions written by Justice Sandra Day OConnor, enter: Example: writtenby (oconnor) Click Search. Note: Missing/Must Include is not available while running a terms & connectors, or Boolean, search. In the search box, enter your search, beginning with the segment name and followed by your search terms in parentheses. If you edit your search terms or run a new search, your Must Include selection is cleared. ![]() ![]() Legal phrases and documents - If the terms you are typing are closely related to a legal phrase or document, youll see a list of suggestions you can select from. This logic still underpins all digital devices to this day, existing in almost every line of computer code. His legacy was Boolean logic, a theory of mathematics in which all variables are either true or false, or on or off. Enter your search terms in the search box, using either natural language or Boolean search construction. Boolean search is based on the work of prominent British mathematician George Boole. If you want to remove the Must Include selections, click Clear to run your initial search again. Lexis Advance® User Guide 5 How do I search all content 1. Your search runs again and the term you selected to include will be mandatory and will appear in each result. The Boolean operator NOT tells the search engine that you want to find information about the first search term, but nothing about the second. If you want to make sure that term appears in each result, click the term next to Must Include. This will broaden your search results because the search engine will bring back any results that have either search term in them. The following is the complete list of available keyboard shortcut hotkeys available to navigate full text documents: Hotkey. Missing displays which of your search term(s) do not appear in that document. You can open the complete list of keyboard shortcut hotkeys while on a full text document on the Lexis+ service by pressing Ctrl + Alt + H. In a natural language search, the service uses an algorithm designed to retrieve top results while reducing the overall answer set to include only the most relevant results, which means that it is possible not every one of your search terms appears in each result. When you formulate searches with terms and connectors, Lexis and Westlaw behave similarly, but not identically. Missing/Must Include appears at the bottom of the results entry in the results list. The Missing/Must Include feature on Lexis+ ® UK works when running a natural language, or plain language, search.
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