La mathématique, les mathématiques, la mathématique moderne

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review: * Michel Moreau, “[M.-L. Guerard des Lauriers, *La mathématique. Les mathématiques. La mathématique moderne*](https://isidore.co/misc/Physics%20papers%20and%20books/Zotero/storage/D8X9EDUZ/Moreau%20-%201974%20-%20M.-L.%20Guerard%20des%20Lauriers,%20La%20math%C3%A9matique.%20Les%20m.pdf),” *Revue Philosophique de Louvain* 72, no. 15 (1974): 586–587.Moreau says Des Lauriers polemically argues against "ensemblisme" ("set-theory-ification of math"): « *À bas l'ensemblisme; et, alors, vive Bourbaki!* » and in favor of viewing math in terms of *relation*. The goal of math is not self-consistency, but ultimately the contemplation of God.* * *good brief bio of Bp. des Lauriers: [p. 35fn3 of this](https://books.google.com/books?id=AusmjgLxeI4C&pg=PA35)* * *[Guérard des Lauriers, O.P.](https://www.worldcat.org/identities/lccn-no2005098431/) is well-known among French Thomists, and he's a fascinating character. He studied mathematics with big-wigs like Levi-Civita and Cartan, obtaining his degree at the *École Normale Supérieure* : [Sur les systèmes différentiels du second ordre qui admettent un groupe continu fini de transformations](https://isidore.co/misc/Physics%20papers%20and%20books/Zotero/storage/F2XZNNCF/ASENS_1940_3_57__201_0.pdf) ([MathSciNet review](https://isidore.co/misc/Physics%20papers%20and%20books/Zotero/storage/P5FPBGFX/5984.pdf)). He was a consultant to Pius XII on the Assumption, and some think he drafted [Munificentissimus Deus](http://www.vatican.va/holy_father/pius_xii/apost_constitutions/documents/hf_p-xii_apc_19501101_munificentissimus-deus_en.html). He helped write the [Ottaviani Intervention](https://www.ewtn.com/library/curia/reformof.htm). He devised the [sedeprivationism](https://www.worldcat.org/identities/lccn-no2005098431/) [(a.k.a. the "Cassiciacum" or *papa materialiter* ) thesis](http://liguesaintamedee.ch/notre-position/these-de-cassiciacum). He was consecrated a bishop by Abp. Thuc, on the prevision that he be sedevacantists, but then he returned to defending sedeprivationism. Here're some books by or on him: 1. [Le mystère de l'être : l'approche thomiste de Guérard des Lauriers : avec la traduction de tous les textes où saint Thomas traite de la "nature de l'être"](http://worldcat.org/oclc/225582024 "1 editions published between 2007 and 2007, held by 35 WorldCat member libraries worldwide, in French,") by Louis-Marie de Blignières 2. *[La mathématique, les mathématiques, la mathématique moderne](http://worldcat.org/oclc/001398783)* by M.-L Guérard des Lauriers[his dissertation](https://isidore.co/misc/Physics%20papers%20and%20books/Zotero/storage/F2XZNNCF/ASENS_1940_3_57__201_0.pdf) under Élie Cartan at ENS is 1940; he was classmates with Levi-Civita and André Weil. He worked on his doctorate in mathematics after obtaining degrees in theology. some interesting PDFs on him: * [his last sermon](http://www.a-c-r-f.com/documents/Mgr_GUERARD_des_LAURIERS_dernier-sermon_plus-2-articles.pdf) * [interview](http://www.a-c-r-f.com/documents/soda-13_Mgr-G-de-L.pdf) * [biography](http://ddata.over-blog.com/xxxyyy/0/46/19/78/La-vie-de-Mgr-Guerard-des-Lauriers.pdf) * [another bio](http://www.a-c-r-f.com/documents/Mgr_GUERARD_des_LAURIERS-textes.pdf)