compound ket fn: is-greater-equal-than

is-greater-equal-than:
    description:
        is-greater-equal-than[value] ket
        returns yes/no if the value in ket >= value

    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 the empty ket |>
        is-greater-equal-than[13] |the cat>
            |>

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