These slides were used in a lecture at Warwick as part of the BSHM Christmas Meeting 2019. They address the question of whether, and when, it is appropriate to say of some of Bolzano’s insights into continuity that he was, ‘ahead of his time’.

Visions in the Night: Bolzano’s Anticipations of Continuity

The paper by Jean Christianidis et al referred to in the penultimate slide.