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A positional notation was introduced previously by De Bruijn but presumably Sussman and Wisdom came up with theirs independently since they don't cite him. htt
by nemoniac 3y ago
A positional notation was introduced previously by De Bruijn but presumably Sussman and Wisdom came up with theirs independently since they don't cite him.
https://en.wikipedia.org/wiki/De_Bruijn_index https://en.wikipedia.org/wiki/De_Bruijn_index