description: is-less-than[value] ket returns yes/no if value < the value in ket examples: is-less-than[80] |age: 76> |yes> is-less-than[2000] |year: 2018> |no> -- if the ket has no float value, then return |> is-less-than[13] |the cat> |> see also: is-greater-than, is-greater-equal-than, is-less-equal-than, is-equal, is-in-range greater-than, greater-equal-than, less-than, less-equal-than, equal, in-range