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  "body": "\n## Summary\n\nA logical connective is a symbol that builds a new formula from one or more given formulas.\nThe usual connectives are [[negation|029JBBF693]] $\\neg$, [[conjunction|025YZN3VJW]] $\\land$, [[disjunction|0F72FK8EKB]] $\\lor$, [[implication|0NMG7W7Q11]] $\\to$ and the [[biconditional|0S6GMNJ62Y]] $\\leftrightarrow$.\nIn classical logic, each connective is given by a truth function, which a [[truth table|05RSK4Q657]] displays.\nConnectives are the glue of [[propositional logic|09K9MWD2QQ]] and of [[predicate logic|086QKPF0A6]].\n\n## Explanations\n\n### L1 human\n\nConnectives are the words \"not\", \"and\", \"or\", \"if ... then\" and \"if and only if\", written as symbols.\nThey join simple statements into compound ones.\nFor example, from $p$: \"it rains\" and $q$: \"it is cold\", the connective $\\land$ builds $p \\land q$: \"it rains and it is cold\".\nIn classical logic, the truth of the compound statement depends only on the truth of its parts.\n",
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