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Our Philosophies

  • Math is fun
  • Even more so, if we get applications with impact
  • (and that makes our lives much easier...)

Group MMM

Mathematical and Metamathematical Modeling

i.e. Work Hard, Play Harder!

Hasuo Laboratory

Dept. Computer Science, the University of Tokyo

http://www-mmm.is.s.u-tokyo.ac.jp

Our Strategy

Our Mission

abstract, generic

w/ parameter P

  • Modern, abstract mathematics

Mathematical

abstract theory

Category Theory (and Algebra)

Logic

  • A modern math. language, with arrows
  • Reasoning, described mathematically and syntactically
  • Emphasis on structure
  • not how an entity is constructed
  • but how it relates to others
  • Metamathematics
  • Reveals the "same structure" obscured by set-theoretic explicit descriptions
  • Applied to computer science

Existing

concrete theory

Computer Systems: Emerging Concerns

Computer Systems: Correctness

  • Everywhere, important roles... but buggy
  • Pervasiveness ==> new concerns
  • Formal verification
  • providing a mathematical proof for correctness
  • not testing
  • Cyber-Physical Systems
  • Digital control in physical environment
  • i.e. (discrete) jump & (continuous) flow

New applications,

new concerns and

new computation paradigms

  • (Manual) theorem proving (Coq, Agda, PVS, ...); automatic theorem proving (SMT, ...); model checking
  • Quality of service (QoS), quantitative verification
  • "Correct? Yes/No" ==> "How often?", "at what cost?", ...

Our Topics

Our Events

Quantum Programming

Lambda Calculus

Quantitative

Verification

Cyber-Physical

Systems

Semantics of Functional Programs

  • Semantics of quantum lambda calculus [LICS 2011]
  • Quantum proof nets [ESOP 2014]
  • Coalgebraic simulation and matrices [CONCUR 2014]
  • Coinductive predicates [MFPS 2013]
  • Games and program logic [CMCS 2014]
  • Nonstandard analysis and theorem proving [ICALP 2011] [CAV 2012] [POPL 2013]
  • Program logic and input synthesis [HAS 2014]
  • Geometry of Interaction (GoI) as a compilation technique [CSL-LICS 2014] [LOLA 2014]
  • Linear logic, proof nets, GoI [CSL-LICS 2014]

Coalgebra

  • Seminars (almost) every day!
  • Group seminar 1/week
  • Topicwise seminars (lambda, hybrid, quantitative, quantum) 1/week
  • Guests
  • Regular: Kohei Suenaga, Naohiko Hoshino (Kyoto)
  • More from abroad, industry, ...
  • Summer seminar w/ CS Group, RIMS, Kyoto Univ.
  • Trips abroad (conferences, summer schools, ...)

Nonstandard Analysis

Modal

Logic

Categorical Logic

Logic

Category Theory

Algebra

P = P_2

New

concrete theory

P = P_1

extract essence w/

"mathematical eyes"

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