can be easily guessed; the rest is self-evident
A set phrase used to indicate that the conclusion or outcome is obvious from the context, so further explanation is unnecessary. Often appears in formal or written contexts.
Given his ability, the result can be easily guessed.
このデータを見れば、来月の売り上げは推して知るべしだろう。
Looking at this data, next month's sales are self-evident.