A good question. Older versions of K had if and while as syntactic sugar. You could always do without them by using cond and adverbs. K5 did away with these syn

A good question. Older versions of K had if and while as syntactic sugar. You could always do without them by using cond and adverbs. K5 did away with these syntactic forms, and for whatever reason Arthur decided to put them back in k6.