> as lemmas

1842 W. H. Prescott Jrnl. 20 Aug. in Lit. Memoranda (1961) II. 92 Tried to write on an imperfect pre-thinking—i.e. thinking, as Irving said to me—with a pen.

1964 Ann. Math. 80 311 The prethinking which inspired Lemma 4 may be described as follows.

2001 Business Rev. Weekly 23 Feb. 87/3 Stevens says that today, PwC is not just waiting for a client to ask for a solution. ‘We are doing a lot more pre-thinking.’