Luce Irigaray is one of the foremost philosophers and feminist thinkers of our day. Her work has had an enormous impact on the visual arts and is widely taught and read across the field - yet the actual implications of this influential body of thought for art itself are rarely elucidated. What does her work really mean when it comes to the art made by women artists? Hilary Robinson looks at the work of groundbreaking women artists including Louise...