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It is a normal modal logic, and one of the oldest systems of modal logic of any kind. It is formed with propositional calculus formulas and tautologies , and inference apparatus with substitution and modus ponens , but extending the syntax with the modal operator necessarily {\displaystyle \Box } and its dual possibly {\displaystyle \Diamond } .
In modal logic, modal collapse is the condition in which every true statement is necessarily true, and vice versa; that is to say, there are no contingent truths, ...
The English modal auxiliary verbs are a subset of the English auxiliary verbs used mostly to express modality, properties such as possibility and obligation. [a] They can most easily be distinguished from other verbs by their defectiveness (they do not have participles or plain forms [b]) and by their lack of the ending ‑(e)s for the third-person singular.
Modal adjectives can express modality regarding a situation or a participant in that situation. With situations, some usual syntactic patterns include an extraposed subject, [3] such as the underlined elements in the following examples with the modal adjective in bold. Here the modal adjective is analyzed semantically as a sentential modal ...
The White House urged the FCC to force U.S. telecoms to improve security after nine were breached in the "Salt Typhoon" Chinese hacking campaign.
Modal administration, used in Federal Agencies to describe sub-offices or "modes" Modal transportation, used in transit to describe multiple modes of transit available such as bus, trolley, train, ferry; Modal score, used in testing and education for the most common score; Modal verb, a type of auxiliary verb that is used to indicate modality
Google Classroom is a free blended learning platform developed by Google for educational institutions that aims to simplify creating, distributing, and grading assignments. . The primary purpose of Google Classroom is to streamline the process of sharing files between teachers and students.
Modal adverbs often appear as clause-initial adjuncts, and have scope over the whole clause, [4] as in (1) with the adverb in bold. Probably, the biggest push for corruption prosecutions came in the mid-2000s. This has the same meaning as (2) with the paraphrase using the modal adjective (in bold).