How to use non derivable in a sentence? Find typical usage patterns (collocations)/phrases/context for "non derivable" and check conjugation/comparative form for "non derivable". Mastering all the usages of "non derivable" from sentence examples published by news publications.
'Focus (abbreviated ') is a grammatical category that determines which part of the sentence contributes new, non-derivable, or contrastive information. Focus is related to information structure. Contrastive focus specifically refers to the coding of information that is contrary to the presuppositions of the interlocutor. The topic–comment model distinguishes between the topic (theme) and what is being said about that topic (the comment, rheme, or focus).
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Intuitively, givenness classifies words and information in a discourse that are already known (or given) by virtue of being common knowledge, or by having been discussed previously in the same discourse ("anaphorically recoverable"). Certain theories (such as Roger Schwarzschild's GIVENness Constraint) require all non-focus-marked constituents to be given. Words/information that are not given, or are "textually and situationally non-derivable" are by definition new.
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It has been claimed that new information in the discourse is accented while given information is not. Generally, the properties of new and given are referred to as a word's discourse status. Definitions of new and given vary. Halliday defines given as "anaphorically" recoverable, while new is defined to be "textually and situationally non- derivable information". To illustrate this point, consider the following discourse in (12) and (13): (12) Why don’t you have some French TOAST? (13) I’ve forgotten how to MAKE French toast.
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Focus is a grammatical category or attribute that determines indicating that part of an utterance contributes new, non-derivable, or contrastive information. Some theories (in line with work by Mats Rooth) link focus to the presence of alternatives (see Focus: Alternative Semantics). An alternatives theory of focus would account for the stress pattern in the example from the previous section (When did Jane sell the book? She sold the book YESTERDAY), saying that YESTERDAY receives focus because it could be substituted with alternative time periods (TODAY or LAST WEEK) and still serve to answer the question the first speaker asked.
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Any ratio between physical constants of the same dimensions results in a dimensionless physical constant, for example, the proton-to- electron mass ratio. Any relation between physical quantities can be expressed as a relation between dimensionless ratios via a process known as nondimensionalisation. The term of "fundamental physical constant" is reserved for physical quantities which, according to the current state of knowledge, are regarded as immutable and as non-derivable from more fundamental principles. Notable examples are the speed of light c, and the gravitational constant G. The fine-structure constant α is the best known dimensionless fundamental physical constant.
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