2 08.11

private infix fun Boolean.arrow(other: Boolean) = !(this && !other)

fun main() {
    val arr = booleanArrayOf(true, false)

    println("h l w n")

    arr.forEach { h ->
        arr.forEach { l ->
            arr.forEach { w ->
                arr.forEach { n ->
                    if (!((!(h arrow l)) arrow ((!(w arrow n)) && h)))
                        println("$h $l $w $n")
                }
            }
        }
    }
}