"Returns a function which is the logical conjunction of the 
 given predicate functions."​
​tagged("Functions")
​since("1.1.0")
​shared Boolean and<in Value>(
    "The first predicate function"​
    Boolean(Value) p,
    "The second predicate function" 
    Boolean(Value) q)(Value val) 
        => p(val) && q(val);
​