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In semantics and syntax, conjunction is the combination of two sentences or clauses with 'and'.


In propositional logic, the conjunction of two formulas Phi and Psi, written Phi & Psi, is true if both Phi and Psi are true, otherwise it is false. The truth table of conjunction is therefore as follows:

   Phi    Psi	     Phi & Psi
    1	    1	   	 1
    1      0	  	 0
    0	    1	   	 0
    0	    0	   	 0


Conjunction is also used in the sense 'coordinator or subordinator' (see conjunction (i.e. connective)).


Utrecht Lexicon of Linguistics


Gamut, L.T.F. 1991. Logic, language, and meaning. Chicago: University of Chicago Press.

Other languages

German Konjunktion