7th Workshop on Formal Topology (original) (raw)

Canaletto, San Francesco della Vigna (ca. 1760)

From topology to dynamic constructivism,

and back.

Convento di San Francesco della Vigna

Venice, April 13–17, 2026

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The Workshop

This is the seventh of a series of successful meetings on the development of Formal Topology and its connections with related approaches. The first six have been held in Padua (1997), Venice (2002), Padua (2007), Ljubljana (2012), Stockholm (2015), and Birmingham (2019).

The theme of the 7WFTop is:

From topology to dynamic constructivism, and back.
Dynamic constructivism is a new approach to the foundation of mathematics proposed by Giovanni Sambin starting from the 90s and whose forthcoming book is a first organic exposition. The main claim is that mathematics is the result of a dynamic, human process, which stems from the interplay between the construction of mathematical entities, by abstraction and by idealization, and their selection according to their effectiveness in applications to reality and in the organization of mathematics itself. Pointfree topology in the form of Formal Topology and the more recent Positive Topology provides a key tool to link the effective content of mathematics with its ideal one, and thus achieve a synthesis of computation and visual intuition. A careful management of information within a dynamic view "back and forth" from mathematics to its foundation inevitably leads to accepting a plural vision of mathematics, thus enlightening connections between different constructive or even classical approaches to it.

Programme

TBA – the scientific program will begin at 9:00 a.m. on Monday 13th and conclude at 7:00 p.m. on Friday 17th.

Call for Contributions

There will be room for some contributed talks. Talk proposals have to be submitted at wftop.quasicoherent.io

• Talk Proposal Submission Deadline: February 10th
• Notification to authors: February 20th (before the early registration extended deadline)

Registration

Registration is now open. The registration fees are as follows:

• Early registration (until 5 December): €250
• Early registration extended period (from 31 January until 28 February): €250
• Late registration (from 1 March until 13 March): €320

To register, please fill out this form.

Venue

The workshop will be held at the Franciscan convent of San Francesco della Vigna in Venice, Italy. (Google Maps)

⚠️ Please beware of accommodation-related scam emails targetting this event.

Committees

Scientific Committee

• Ingo Blechschmidt (University of Antwerp, Belgium)
• Thierry Coquand (University of Gothenburg, Sweden)
• Martín Escardó (University of Birmingham, UK)
• Maria Emilia Maietti (University of Padua, Italy)
• Per Martin-Löf (Stockholm University, Sweden)

Organizing Committee

• Cipriano Junior Cioffo (University of Pisa, Italy)
• Francesco Ciraulo (University of Padua, Italy)
• Maria Emilia Maietti (University of Padua, Italy)
• Samuele Maschio (University of Padua, Italy)
• Pietro Sabelli (Czech Academy of Sciences, Prague, Czech Republic)
• Giovanni Sambin (University of Padua, Italy)

For any information regarding the organization, please write to 7wftop@math.unipd.it