Goals for a theory of deduction: Reply to Johnson-Laird

Lance J. Rips*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Lance J. Rips' `The Psychology of Proof' proposes that deduction might be an important cognitive skill, not limited to proving mathematical theorems or solving logic brain-teasers, and shows why certain deductive arguments appear so invincible. Philip Johnson-Laird's review touches on most of the book's original goals, provides an opportunity to reflect on how close the theory comes to fulfilling them, and more importantly defends mental models. Rips replies to this review, clarifying the goals of his theory and bringing out some further points in its favor while attacking the mental model theory.

Original languageEnglish (US)
Pages (from-to)409-424
Number of pages16
JournalMinds and Machines
Issue number3
StatePublished - Aug 1 1997

ASJC Scopus subject areas

  • Philosophy
  • Artificial Intelligence

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