operator: is-greater-equal-than

    description:
        is-greater-equal-than[value] ket
        returns yes/no if value >= the value in ket
      
    examples:
        is-greater-equal-than[13] |number: 13>
            |yes>
        
        is-greater-equal-than[21] |age: 23>
            |yes>
        
        is-greater-equal-than[1980] |year: 1977>
            |no> 

        -- if the ket has no float value, then return |>
        is-greater-equal-than[13] |the cat>
            |>

    see also:
        is-greater-than, is-less-than, is-less-equal-than, is-equal, is-in-range
        greater-than, greater-equal-than, less-than, less-equal-than, equal, in-range