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Venn diagram of (true part in red) In logic and mathematics, the logical biconditional, also known as material biconditional or equivalence or bidirectional implication or biimplication or bientailment, is the logical connective used to conjoin two statements and to form the statement "if and only if" (often abbreviated as "iff " [1]), where is known as the antecedent, and the consequent.
Logical connectives can be used to link zero or more statements, so one can speak about n-ary logical connectives. The boolean constants True and False can be thought of as zero-ary operators. Negation is a unary connective, and so on.
Negation is a unary logical connective. It may furthermore be applied not only to propositions, but also to notions, truth values, or semantic values more generally. In classical logic, negation is normally identified with the truth function that takes truth to falsity (and vice versa).
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Connective may refer to: Connective tissue; Discourse connective, in linguistics, a word or phrase like "therefore" or "in other words". Logical connective; Connective (botany), in the stamen of flowers, the sterile tissue that connects the anther chambers to one another and to the filament
A discourse marker is a word or a phrase that plays a role in managing the flow and structure of discourse.Since their main function is at the level of discourse (sequences of utterances) rather than at the level of utterances or sentences, discourse markers are relatively syntax-independent and usually do not change the truth conditional meaning of the sentence. [1]
Spanish verbs are conjugated in three persons, each having a singular and a plural form. In some varieties of Spanish, such as that of the Río de la Plata Region, a special form of the second person is used. Spanish is a pro-drop language, meaning that subject pronouns are often omitted.