... of parametric choices. French verb second ambiguity Principle of Compositionality reanalysis relative clause change cue English German logical problem of language change OV VO parameter parameter trigger unambiguous evidence economy structural P expression competing grammars frequency verb...

... is part of the target grammar. However, as already noted, this gives rise to 466 an apparent paradox, which is sometimes called ‘the logical problem of language change’ (see Clark and Roberts 1993 , 1994 ; Niyogi and Berwick 1998 ; Roberts 2007 :230–231): ⁸ The logical problem...