Heinrich Scholz

Heinrich Scholz
Heinrich Scholz in the Mathematical Research Institute Oberwolfach
Born	December 17, 1884 (1884-12-17) Berlin, Germany
Died	December 30, 1956(1956-12-30) (aged 72) Münster, Westphalia
Citizenship	German
Fields	Mathematics Logic
Institutions	University of Breslau University of Berlin Erlangen University
Alma mater	Münster University
Doctoral advisor	Richard Falkenberg Otto Toeplitz
Doctoral students	Friedrich Bachmann Hans Hermes Gisbert Hasenjaeger
Known for	Institute of Mathematical Logic and Fundamental Research at the University of Münster World's first seminar on computer science [with Alan Turing]
Influences	Alfred North Whitehead Bertrand Russell Otto Toeplitz Alan Turing Friedrich Schleiermacher

Heinrich Scholz (*December 17, 1884 in Berlin, † December 30 1956 in Münster, Westphalia) was a German logician, philosopher, and theologian who was a peer of Alan Turing and who wrote in his memoirs that he on the inclusion of his essay from 1936 On Computable Numbers, with an Application to the Entscheidungsproblem ^[1] [was disappointed that only] two people could have understood it, and would have responded [had he been asked] – Heinrich Scholz and Richard Bevan Braithwaite. Scholz had an extraordinary career but was not considered a brilliant logician, for example on the same level as Gottlob Frege or Rudolf Carnap, but was considered an outstanding scientist of national importance. He provided a suitable academic environment for his students to thrive. He founded the Institute of Mathematical Logic and Fundamental Research at the University of Münster in 1936, which can be said enabled the study of logic at the highest international level after World War 2 up until the present day.^[2]

Personal life

Herman Scholz father was a minister at St. Mary's Church, Berlin.^[3] From 1903 to 1907 he studied philosophy and theology at Erlangen University and Berlin University achieving a Licentiate in theology (Lic. theol.). He was a student of Adolf von Harnack, in philosophy with peers Alois Riehl and Friedrich Paulsen. On the 28th July 1910, Scholz habilitated in the subjects of religious philosophy and systematic theology in Berlin, and was promoted to full professor, therein working as a lecturer.^[4] In 1913, at Erlangen, Herman Sholz took his examination for promotion of Dr. phil. with Richard Falkenberg, studying the work of Schleiermacher and Goethe, his thesis title: A contribution from the history of the German spirit. In 1917 was appointed to the chair of Philosophy of Religion at the Breslau succeededing Rudolf Otto to teach religious philosophy and systematic theology. In the same year he married his fiancée, Elisabeth Orth. Due to a 8 years of continuous gastric trouble, he was exempted from military service. In 1919, he underwent an operation in which he believed to be a large part of his stomach was removed. That year he took the call to Kiel University, as the chair of philosophy. It was while at Kiel, in 1924, that Scholz's first wife, Elisabeth Orth died.^[4]

From October 1928 onwards, he taught in Münster University, first as Professor of Philosophy. In 1938, this was changed to Professor of Philosophy of Mathematics and Science and again in 1943 to Chair of Mathematical Logic and Foundational Questions in Mathematics working as head of the Institute for Mathematical Logic and Foundational Research at Münster^[5] until he retired in 1952 as professor emeritus.^[4]

Scholz was survived by his second wife, Erna. Scholz grave is located on the Park Cemetery Eichhof near Kiel.

Work

From his own account, in 1921, having by accident came across Principia Mathematica by Bertrand Russell and Alfred North Whitehead he began studying logic, which he had abandoned in his youth to study theology, leading later to a study of mathematics and theoretical physics by taking an undergraduate degree at Kiel.^[2] However another factor in his change of focus was the mathematician Otto Toeplitz.^[4] Toeplitz's broad research interests including Hilbert spaces and spectral theory encouraged Scholz interest in mathematics. Indeed Segal^[4][6] suggests that Scholz love of structure was also a important factor in his move into mathematical logic, describing it this:

Scholz's feeling for structure was no small thing. He apparently felt that when having guests for dinner: (1) no more than six people should be invited; (2) there must be an excellent menu; (3) a discussion theme must be planned; and (4) the guests should have prepared themselves as much as possible beforehand on this theme.

In 1925, he was a peer of Karl Barth at Münster University, in which he taught Protestant theology. Under the influence of conversations with Scholz, Barth later wrote in 1930/31. his book about the Anselm of Canterbury proof of God "fides quaerens intellectum".

In the 1930s, he continued to maintain contact with Alan Turing and who later wrote in his memoirs that he on the inclusion of his essay from 1936 On Computable Numbers, with an Application to the Entscheidungsproblem was disappointed that only two people could have understood it, and would have responded – Heinrich Scholz and Richard Bevan Braithwaite.

At the University of Münster, his study into mathematical logic and basic research, provided many of the critical insights, that contributed to the foundations of theoretical computer science.^[2] Right from the time he arrived at Münster, Scholz worked towards building a school of mathematical logic.^[4] By 1935, his research team at Münster were being referred to as the Münster school of mathematical logic.^[4] Scholz names 1936, as the year the Münster School was born.^[3] His professorship was rededicated in 1936 to a lectureship for mathematical logic and basic research and in 1943 the first chair in Germany for mathematical logic and basic research. The Münster Chair is still regarded as one of the best in Germany.

Scholz was considered a Platonist, and in that sense, he regarded the mathematical logic as the foundation of knowledge. In 1936 he was awarded a grant from the DFG, for the production of three volumes of research in logic and for the editing of the Gottlob Frege papers. He is considered the discoverer of the estate of Gottlob Frege^[7]

Gisbert Hasenjaeger whose thesis had been supervised by Scholtz, produced a book Grundzüge der mathematischen Logik in 1961 which was jointly authored with Scholz despite being published five years after Scholz's death.^[4]

Work during World War II

Initially Scholz was pleased with the rise of Nazi power in Germany. Describing himself a conservative nationalist, describing himself as such We felt like Prussians right to the bone,^[3] and described by his friend Heinrich Behnke as a small-minded Prussian nationalist.^[4] Behnke found discussing political issues difficult. In the beginning the Nazi laws helped establish the Munster as an important centre for Logic as other university staff at Göttingen and Berlin Universities were being obliterated.

In 14 March 1940, Scholz sent a letter to the Education department of occupied Poland, seeking the release of Jan Salamucha,^[4] who had been professor of theology at Krakow University. Salamucha was sent to Sachsenhausen concentration camp in 1940. In October 1940, Scholz received a reply for the education minister which stated he had injured the national honour and was forbidden to send further petitions. Salamucha was later released but killed by the Nazis in 1944^[4] However, Scholz persisted, first helping Alfred Tarski, who had fled Poland to the United States, to correspond with his wife who remained in Poland and later helping the Polish Logician Jan Lukasiewicz, who he had been corresponding since 1938, to leave Poland with his wife and hide in Germany.^[4]

Scholz remained on good terms with Nazis academics like Ludwig Bieberbach.^[4] During the period of National Socialism, Max Steck, who championed the German Mathematics ^[8] which rejected the formalist approach to mathematics. He deeply opposed Hilberts approach which he described as Jewish - the worst possible insult in Germany at this time.^[4] In response to this, Bieberbach asked Scholz to write an article for Deutsche Mathematik, to answer the attacks on formalism by Steck, which was surprising since Bieberbach led the Nazi mathematicians' attack on Jewish mathematics. Ensuring that Hilbert was not considered "Jewish.", Scholz wrote What does formalised study of the foundations of mathematics aim at?.^[4] Scholz had received funding from Bieberbach as early as 1937, which prompted an annoyed Steck to write in his 1942 book:

What Scholz has understood is doubtless this, to obtain from the German State huge amounts of publication money for this logic production. We fundamentally reject this logic which praises the English empiricists and sensory philosophers such as the Englishmen Locke, Berkeley, Hume, and by now find it really time to speak for once about the "Great Germans".^[4]

Worlds First Computer Science Seminar

In the late 2000's, Prof. Dr Achim Clausing^[9] was tasked with going through the remaining estate of Scholz at Munster University, and while going through the archive papers in the basement of the Institute of Computer Science, Prof. Clausing discovered two original prints of the most important publication of Alan Turing, which had been missing since 1945.^[10] In this case, the work "On Computable Numbers With an Application to the Entscheidungsproblem" from 1936, which Scholz had requested, and a postcard from Turing. Based on the work by Turing and conversations with Scholz, Clausings stated [it was] the world's first seminar on computer science. The second work, which was a Mind (journal) article, dates from 1950 and is a treatise on the development of artificial intelligence, Turing provided them with a handwritten comment. This is probably my last copy.^[11] At Sotheby's recently, comparable Prints of Turing, which no dedication attached, sold for 180,000 euros.

Works

• Christianity and Science in Schleiermacher's Doctrine of the Faith, 1909
• Belief and unbelief in world history. One Response to Augustine de Civitate Dei, 1911
• Schleiermacher and Goethe. A contribution to the history of the German spirit, 1913, Dissertation.
• Idealism as a carrier of the war thought. Friedrich Andreas Perthes, Gotha, 1915. Perthes' writings on World War II, Volume 3
• Politics and morality. An investigation of the moral character of modern realpolitik. Friedrich Andreas Perthes, Gotha, 1915. Perthes' writings on the World War, Volume 6
• The war and Christianity. Friedrich Andreas Perthes, Gotha, 1915. Perthes' writings on World War II, Volume 7
• The essence of the German spirit. Grote'sche Verlagsbuchhandlung, Berlin, 1917.
• The idea of immortality as a philosophical problem, 1920
• Philosophy of religion. Reuther & Reichard, Berlin, 1921, 2nd, neuverfaßte edition, 1922.
• To, destruction of the West. An examination of Oswald Spengler . Reuther & Reichard, Berlin; 2 neubearb. and supplemented edition, 1921.
• The religious philosophy of the as-if. A review of Kant and the idealistic positivism, 1921
• The importance of Hegel's philosophy for philosophers of the present day. Reuther & Reichard, 1921 Berlin
• The legacy of Kant's doctrine of space and time, 1924
• The Basics of Greek Mathematics, 1928 with Helmut Hasse
• Eros and Caritas. The platonic love and the love within the meaning of Christianity, 1929
• History of logic. Junker and Dünnhaupt, Berlin 1931 (1959 under outline of the history of logic Alber, Freiburg im Breisgau)
• Goethe's attitude to the question of immortality, 1934
• The new logistic logic and science teaching. In: Research and progress, Volume 11, 1935.
• The classical and modern logic. In: Sheets for German Philosophy, Volume 10, 1937, pp. 254–281.
• Fragments of a Platonist. Staufen, Cologne undated (1940).
• Metaphysics as a rigorous science. Staufen, Cologne 1941.
• A new form of basic research. Research and progress No. 35/36 born 1941, pp. 382ff.
• Logic, grammar, metaphysics. In: Archives of philosophy, Volume 1, 1947, pp. 39–80.
• Encounter with Nietzsche. Furrow, Tübingen 1948.
• Principles of mathematical logic. Berlin, Göttingen 1961 Gisbert Hasenjaeger
• Mathesis universalis. Essays on the philosophy as rigorous science, Edited by Hans Hermes, Friedrich Kambartel and Joachim Ritter , University Press, Darmstadt 1961.
• Scholz Leibniz and the mathematical basis for research, annual report German mathematician club 1943

Papers

• Spruce and Napoleon. In: Prussian Yearbooks, Volume 152, 1913, pp. 1–12.
• The religious philosophy of the as-if. In: Annals of Philosophy, 1 Vol 1919, pp. 27–113
• The religious philosophy of the as-if. In: Annals of Philosophy, 3 Bd, H. 1 1923, pp. 1–73
• Why the Greeks did not build the irrational numbers?. In: Kant Studies Vol.3, 1928, pp. 35–72
• Augustine and Descartes. In: Sheets for German Philosophy, Volume 5, 1932, Issue 4, pp. 405–423.
• The idea of God in mathematics. In: Sheets for German Philosophy, Volume 8, 1934/35, pp. 318–338.
• Logic, grammar, metaphysics. In: Archives for Law and Social Philosophy, Volume 36, 1943/44, pp. 393–433

Literature

• H. Hermes: Heinrich Scholz 70th Birthday. In: Mathematics and Physical semester reports 4, 1955, pp. 165–170. ISSN 0340-4897
• Herbert Meschkowski : Heinrich Scholz. On the 100th Birthday of the basic researcher. In: Humanism and Technology 27, 1984, ISSN 0439-884X, pp. 28–52.
• V. Peckhaus: Moral Integrity During a Difficult Period: Beth and Scholz In:. Philosophia Scientiae, Nancy, volume 3, number 4, pp. 151–173. ( online )
• H.-C. Schmidt am Busch, KF Wehmeier (ed.): Heinrich Scholz. Logician, philosopher, theologian. Mentis, Paderborn 2005.
• Linne Helmut Weber Lammerskitten, Scholz, Heinrich, in: BBKL Vol IX (1995) 683–687 Sp.
• Hans-Christoph Schmidt am Busch: Scholz, Heinrich. In: New German Biography (NDB). Volume 23, Duncker & * Humblot, Berlin 2007, ISBN 978-3-428-11204-3, pp. 454 f ( digitized ).
• Molendijk, AL: From dark to light. Science and Theology in the thought of Heinrich Scholz. With unpublished thesis rows of Heinrich Scholz and Karl Barth. (Diss)

References

External works

• John J. O'Connor, Edmund F. Robertson : Heinrich Scholz (logician). In: MacTutor History of Mathematics archive (English)
• Literature of and over Heinrich Scholz in the catalog the German national library