CONWAY CHAINED ARROW NOTATION

Rule: a→b→1 = a→b.   a→1→c = a.   a→b→c = a→(a→(b−1)→c)→(c−1)

EXPAND RESET

3→3→3→3

3→3→3→3 is so vast it dwarfs Graham's number. We can only unfold a few steps before the expression exceeds all notation.