The phrase "a valid element" is correct and usable in written English.
It can be used when discussing components or parts that are acceptable or legitimate within a certain context, such as in a discussion about rules, systems, or structures.
Example: "In the context of the experiment, a valid element of the methodology is the control group, which ensures accurate results."
Alternatives: "an acceptable component" or "a legitimate part".
If a test (e.g. well-formed-test or URIs-reachable-test) contains a valid element child then it MUST NOT contain any warning or error element children.
For most cheminformatics formats, if the user wishes to represent a common abbreviation, e.g. the use of Ph to represent phenyl, the atom name is simply given the text "Ph" instead of a valid element.
Seen the production increase of fast information, a large number of data are generated and stored in computer database in need to discover knowledge and useful information [3], by applying data mining techniques such as association rules to present the result as a valid element for further use.
Because cells can have differing number of elements, and there is no simple way to use the coordinate value to indicate a valid element, we also allocate a 1D matrix of size equal to the maximum number of cells that holds the number of elements for each cell.
The DITF technique was originally thought to be most effective when the requests being made have a socially valid element, like the example above.
You must be a WCM/NYPH employee with a valid WCM Fund Center/WBS element or NYPH Unrestricted Cost Center number.
Because filter_stream is recursive, the rest may be computed multiple times until a valid first element is found.
Instead, ACE identifies code elements and creates an index of valid elements based on the elements contained in the collection of documents.
Both the control knobs' and the building blocks' framework suggest a mechanical approach with a more or less comprehensive package of universally valid elements and measures, to be constructed or implemented in any particular country.
Like DTDs, schemas describe the valid elements and their legal usage in a document.
Finally, Aquinas develops his own opinion (Respondeo dicendum, "I respond that"), which is basically the second position (though it may integrate valid elements from the first answer) together with replies to remaining objections.
