Infinitive of Result.—The infinitive may be used with ὥστε
(sometimes with ὡς) to denote a result, often an intended result. See cross2260 ff.
a. Several verbs, substantives, and adjectives usually taking the infinitive also admit ὥστε with the infinitive ( cross2271); and the infinitive is found where ὥστε with the infinitive might be expected: μνημονεύουσιν ἀφεθέντα τοῦτον ἐλεύθερον εἶναι
N.—This redundant use of εἶναι is common in Hom. and Hdt.
Herbert Weir Smyth [n.d.], A Greek Grammar for Colleges; Machine readable text [info] [word count] [Smyth].