From April 2007 to September 2015, Professor
School of Humanities, Southeast University
From January 2016 to September 2020, Distinguished Professor
Center for Philosophy of Problem, Huaqiao University
From 09/2018 to 09/2023, Philosphy of problem
To promote the reearch in philosophy of problem.
1.Lei Ma (2015) “Traditional Inference and Its Versions in the Combined Calculus.” The Philosophical Forum. VOL. 46（2）, Summer, pp.155-174.
2.Lei Ma (2015) Truth-graph Method:A Handy Method Different from that of Lesniewsk’s. Studies in Logic, Grammar and Rhetoric 42(55)2015.Volume 42, Issue 1, Pages 79–111, ISSN (Online) 2199-6059, DOI: 10.1515/slgr-2015-0032, November 2015
Lei Ma (2016) Aristotle's Formal System of Modal Logic and its Modal Paradoxes.The Philosophical Forum. VOL.XLVII.NO. 1, Spring, pp. 5–15.
Lei Ma (2017) The essential and the derivative moods of Aristotelian syllogism, Cogent Arts & Humanities, 4: 1282689
Many-Worlds, Self and Dreams, Open journal of Philosophy, Vol.7,No.3, August 2017.pp.353-374.
Lei Ma (2014)Empirical Identity as an Indicator of Theory Choice,Open Journal of Philosophy.Vol.4 No.4.
Lei Ma (2018)The Normal-Form Decision Method in the Combined Calculus. Axiomathes.pp 1–29.