all

Returns true if all elements match the given predicate.

inline fun <T> Sequence<T>.all(predicate: (T) -> Boolean): Boolean(source)

val numbers = sequenceOf(2, 4, 6, 8, 10)
val allEven = numbers.all { it % 2 == 0 }

println("All numbers are even? $allEven")  // Prints: All numbers are even? true

Source