Aim and Topics
Selected Papers
Important Dates
Conference Code of Conduct
Program Committee
Local Organizers
Websites of the past editions
Post-proceedings volumes
LENLS2 (2005)
LENLS3 (2006)
LENLS4 (2007)
LENLS5 (2008)
LENLS6 (2009)
LENLS7 (2010)
LENLS8 (2011)
LENLS9 (2012)
LENLS10 (2013)
LENLS11 (2014)
LENLS12 (2015)
LENLS13 (2016)
LENLS14 (2017)
LENLS15 (2018)
LENLS16 (2019)
LENLS17 (2020)
LENLS18 (2021)
LENLS19 (2022)

Logic and Engineering of Natural Language Semantics 20 (LENLS20)

  • Osaka University Nakanoshima Center, 7th Floor, the room 7C,7D (+ Online)
    Nakanoshima 4-3-53, Kita-ku, Osaka (zip:530-0005)
Dates: November 18(Sat)-20(Mon), 2023
  • Elin McCready (Aoyama Gakuin University)
  • Daisuke Bekki (Ochanomizu University)
  • Koji Mineshima (Keio University)
Invited Speaker(s):
  • Gregoire Winterstein (Universite du Quebec a Montreal)

Aim and topics

LENLS is an annual international conference on formal linguistics (i.e., syntax, semantics and pragmatics), computational linguistics, the philosophy of language, and related fields, including but not limited to the following:

  • Formal syntax, semantics and pragmatics of natural language
  • Model-theoretic and/or proof-theoretic semantics of natural language
  • Computational approaches to semantics and pragmatics
  • Nonclassical logic and its relation to natural language (e.g. substructural, fuzzy, categorical, and topological logic)
  • Formal philosophy of language
  • Scientific methodology and/or experimental design in linguistics

LENLS20 is scheduled to take place in a in-person format (with a physical presence in Osaka), but with a limited option for a virtual presence via zoom.

Selected Papers

LENLS20 is held under the umbrella of The Association for Logic, Language and Information (FoLLI). The collection of full papers will be published in the Lecture Notes in Computer Science (LNCS) series, in accordance with the contract between Springer Nature Switzerland AG and FoLLI.

Important dates:

Abstract submission deadline (Extended):Sep. 7, 2023 (AoE)
Notification of acceptance:Oct. 1, 2023
Deadline for author registration:Oct. 14, 2023 (AoE)
Deadline for the revised abstract:Oct. 29, 2023 (AoE)
Deadline for registration with the conference dinner:Oct. 30, 2023 (AoE)
Deadline for registration without the conference dinner:Nov. 11, 2023 (AoE)
LENLS20:Nov. 18-20, 2023
Deadline for full papers:Dec. 15, 2023 (AoE)


The registration is available via the link below.

The registration fee will be collected on-site at the reception desk (cash only). The zoom link will be shared only among the registered participants. The deadline for the registration with the conference dinner is Octoboer 30, 2023 (AoE). The deadline for the registration without the conference dinner is November 11, 2023 (AoE).

Registration fee for in-person participation: 3,000 yen
Registration fee for online participation: free of charge
Conference dinner fee: 6,000 yen

Lunch Map:


1st Day: November 18 (Sat)

9:15-9:45 Coffee break
9:45-10:00 Opening remark
10:00-11:30   (Chair: Hitomi Hirayama)
  • Lukas Rieser
  • "Intonational meaning at the limits of grammar"
  • Christopher Davis
  • "Towards a semantics of the Javanese speech level system"
  • Ivan Rygaev
  • "Semantic-pragmatic account of syntactic structures"
13:30-15:00   (Chair: Osamu Sawada)
  • [online] Roussanka Loukanova
  • "Semantics of Propositional Attitudes in Type-Theory of Algorithms"
  • [online] Camilo Rodriguez Ronderos, Emma Mathisen, Ira Noveck and Ingrid Lossius Falkum
  • "When children are more pragmatic than adults: Norwegian children's comprehension of contextualized absolute adjectives"
  • Linmin Zhang
  • "An Inquisitive-Semantics perspective on NPI licensing: the cases of only and any more"
15:00-15:30 Coffee break
15:30-17:00   (Chair: Katsuhiko Yabushita)
  • Shao-Yu Huang and I-Ta Hsieh
  • "On the Ye/Haishi alternation in Mandarin Concessive Conditionals"
  • Yusuke Yagi
  • "Two Places Where We Need Plug-negation in Update Semantics"
  • Osamu Sawada
  • "The Japanese negative polarity item hitotsu `even': An event semantics approach"
17:00-17:30 Break
17:30-18:30 Invited talk  (Chair: Elin McCready)
  • Gregoire Winterstein
  • "Argumentative meaning - Semantics with a purpose"

2nd Day: November 19 (Sun)

9:30-10:00 Coffee break
10:00-11:30   (Chair: Kei Yoshimoto)
  • Satoru Suzuki
  • "Additively-Semiordered-Qualitative-Conditional-Probability-Theoretic Foundations of Logic of Probabilistic Indiscriminability"
  • Noritsugu Hayashi
  • "Additivity in Attention Semantics"
  • Ka-Fat Chow
  • "Internal Reading and Reciprocity"
13:30-15:00   (Chair: Daisuke Bekki)
  • [online] Kohei Kishida
  • "Topology and Justified True Belief: A Baseless, Evidence-Free (and Pointless) Approach"
  • Timothee Mickus and Timothee Bernard
  • "Distributional, yes? but semantics? Comparing distributional representations, semantics and syntax"
  • Oleg Kiselyov
  • "Towards a Theory of Anaphoric Binding in Event Semantics"
15:00-15:30 Coffee break
15:30-17:00   (Chair: Koji Mineshima)
  • [online] Daiki Matsuoka, Daisuke Bekki and Hitomi Yanaka
  • "Appositive Projection as Implicit Context Extension in Dependent Type Semantics"
  • Hayate Funakura
  • "Focus Representation and Backward Underspecication in Dependent Type Semantics"
  • Haruka Fukushima, Daniel Plesniak and Daisuke Bekki
  • "Matrix and Relative Weak Crossover on the Level of the Individual: A Proposed Experimental Investigation"
17:00-17:30 Break
17:30-18:30   (Chair: Alastair Butler)
  • Kohei Kajikawa
  • "Analyzing Japanese Cleft Construction in Combinatory Categorial Grammar"
  • Philippe de Groote
  • "On the semantics of dependencies: relative clauses and open clausal complements"
19:00- Conference dinner

3rd Day: November 20 (Mon)

9:30-10:00 Coffee break
10:00-11:30   (Chair: Yoshiki Mori)
  • Alastair Butler
  • "Dot-to-dot semantic representation"
  • Zhuang Chen and Yael Greenberg
  • "Associating with covert focus: A unified, even-like semantics for Mandarin geng"
  • Pola Osher and Yael Greenberg
  • "Comparing Degree-Based and Argumentative Analyses of Even"
13:30-15:00   (Chair: Akitaka Yamada)
  • Kata Balogh
  • "Negation and information structure in Tree-Wrapping Grammar"
  • [online] Julie Goncharov
  • "Actions and beliefs"
  • [online] Stergios Chatzikyriakidis and Giorgos Spathas
  • "A unified analysis of the semantics and pragmatics of Greek polydefinites"
15:00-15:30 Coffee break
15:30-17:00   (Chair: Eri Tanaka)
  • [online] Simon Vonlanthen
  • "Use, Compositionality and Prior's Puzzle"
  • [online] Seyed Habib Hosseini Saravani, Sara Besharati and Gregoire Winterstein
  • "Are Language Models Capable of Detecting the Topoi in Argumentative Statements?"
  • [online] Kristina Liefke
  • "Perspective and the Self in Experiential Attitude Reports"
17:00-17:30 Break
17:30-18:30   (Chair: Elin McCready)
  • Takanobu Nakamura
  • "Cumulative questions and structured witnesses"
  • Philippe de Groote, Maxime Guillaume, Agathe Helman, Sylvain Pogodalla and Raphael Salmon
  • "Extending Abstract Categorial Grammars with Feature Structures: Theory and Practice"
18:30-18:40 Closing remark


  • Hitomi Yanaka
  • "Compositional Account of Event Quantification in Dependent Type Semantics"
  • Daiki Matsumoto
  • "Making Commitment Explicit: Case Study from the Japanese Discourse Particle Ne in Interrogatives"


LENLS is being organized by an alliance of ``AI systems that can explain by language based on knowledge and reasoning'' project (Grant Number JPMJCR20D2), funded by JST CREST Programs ``Core technologies for trusted quality AI systems.'' LENLS 20 is co-organized by Graduate School of Humanities, Osaka University.

Conference Code of Conduct

All attendees, speakers, sponsors and volunteers at our conference are required to adhire to the following code of conduct. Organisers will enforce this code throughout the event. We expect cooperation from all participants to help ensure a safe environment for everyone.

The Quick Version

The organizers are dedicated to providing a harassment-free conference experience for everyone, regardless of gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, or religion (or lack thereof). We do not tolerate harassment of conference participants in any form. Sexual language and imagery is not appropriate for any conference venue, including talks, workshops, parties, and social media. Conference participants violating these rules may be sanctioned or expelled from the conference without a refund at the discretion of the organisers.

The Less Quick Version

Harassment includes offensive verbal comments related to gender, gender identity and expression, age, sexual orientation, disability, physical appearance, body size, race, ethnicity, and religion (or lack thereof), as well as sexual images in public spaces, deliberate intimidation, stalking, following, harassing photography or recording, sustained disruption of talks or other events, inappropriate physical contact, and unwelcome sexual attention.

Participants asked to stop harassing behavior are expected to comply immediately.

If a participant engages in harassing behavior, the conference organisers may take any action they deem appropriate, including warning the offender or expulsion from the conference without a refund.

If you experience harassment, notice that someone else is being harassed, or have any other concerns, please contact the following conference staff members immediately: Elin McCready and Daisuke Bekki

THe conference staff will be happy to help participants contact hotel/venue security or local law enforcement, provide escorts, or otherwise assist those experiencing harassment to feel safe for the duration of the conference. We value your attendance.

We expect participants to follow these rules at conference and workshop venues as well as conference-related social events.

Program Committee:

  • Elin McCready (Aoyama Gakuin University)
  • Daisuke Bekki (Ochanomizu University)
  • Koji Mineshima (Keio University)
  • Alastair Butler (Hirosaki University)
  • Patrick D. Elliott (Heinrich-Heine University of Dusseldorf)
  • Naoya Fujikawa (University of Tokyo)
  • Yurie Hara (Hokkaido University)
  • Robert Henderson (University of Arizona)
  • Hitomi Hirayama (Keio University)
  • Magdalena Kaufmann (University of Connecticut)
  • Yoshiki Mori (University of Tokyo)
  • David Y. Oshima (Nagoya University)
  • Katsuhiko Sano (Hokkaido University)
  • Osamu Sawada (Kobe University)
  • Eri Tanaka (Osaka University)
  • Wataru Uegaki (University of Edinburgh)
  • Katsuhiko Yabushita (Naruto University of Education)
  • Kei Yoshimoto (Tohoku University)
  • Shunsuke Yatabe (Ochanomizu University)

Local Organizers:

  • Eri Tanaka (Osaka University)
  • Akitaka Yamada (Osaka University)