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The "or", (|) in BNF Grammar

The "or", (|) in BNF Grammar Question: I can’t seem to fully understand the application of the "or" in BNF Grammar which is denoted by the vertical bar symbol (|). A good example of what gets me confused is the description of string literals in The Python Language Reference. (I’ve deleted part of the description …

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How do I add operator precedence to a lark grammar for FOL with Equality?

How do I add operator precedence to a lark grammar for FOL with Equality? Question: How do I modify this grammar so it matches parenthesis that are further away? ?wff: compound_wff ?compound_wff: biconditional_wff ?biconditional_wff: conditional_wff (SPACE? BICONDITIONAL_SYMBOL SPACE? biconditional_wff)* ?conditional_wff: disjunctive_wff (SPACE? CONDITIONAL_SYMBOL SPACE? conditional_wff)* ?disjunctive_wff: conjunctive_wff (SPACE? DISJUNCTION_SYMBOL SPACE? disjunctive_wff)* ?conjunctive_wff: negated_wff (SPACE? CONJUNCTION_SYMBOL …

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How do I write the lark grammar for First Order Logic with Equality?

How do I write the lark grammar for First Order Logic with Equality? Question: According to AIMA (Russell & Norvig, 2010) this is the BNF grammar for FOL with Equality: How do I convert this to a lark grammar? Specifically, how do I represent n-ary predicates using lark grammar? Asked By: daegontaven || Source Answers: …

Total answers: 2