to proceed from the easy to the difficult易より難へ進むいよりなんへすすむproceed from fact to theory: 事実｛じじつ｝から理論｛りろん｝へ進むproceed from generalities into particulars: 総論から各論に入るproceed the opposite direction from: ～と逆方向｛ぎゃく ほうこう｝に進む
