- grammar.ts: add 'between' to isKeywordThatCanBePredicate() so the parser
recognizes it as a valid predicate keyword in forall/exists formula bodies
- compiler.ts: add special case in compileDenseFOLToFormula for
between(, min, max, dimension?) that extracts numeric args into
options ({min, max, dimension}) instead of dropping them in the generic
arg loop. The existing betweenPredicate evaluator already handles these.
- fol-dense-combinations.test.ts: replace GAP test with two verified-working
tests for between and between with dimension
John Dvorak
1ac30c6e18