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A NOTE ON THE SEQUENT CALCULI ${{{\bf G3}[{\bf mic}]}}^{=}$

Part of: Proof theory and constructive mathematics

Published online by Cambridge University Press:  02 July 2020

FRANCO PARLAMENTO  and
FLAVIO PREVIALE
FRANCO PARLAMENTO
Affiliation:
DEPARTMENT OF MATHEMATICS, COMPUTER SCIENCE AND PHYSICS UNIVERSITY OF UDINE VIA DELLE SCIENZE 206, 33100 UDINE, ITALYE-mail: franco.parlamento@uniud.it
FLAVIO PREVIALE
Affiliation:
DEPARTMENT OF MATHEMATICS UNIVERSITY OF TURIN VIA CARLO ALBERTO 10, 10123 TORINO, ITALYE-mail: flavio.previale@unito.it
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Abstract

We show that the replacement rule of the sequent calculi ${\bf G3[mic]}^= $ in [8] can be replaced by the simpler rule in which one of the principal formulae is not repeated in the premiss.

Keywords

sequent calculusequalityreplacement rulesadmissibility

MSC classification

Primary: 03F05: Cut-elimination and normal-form theorems
Type
Research Article
Information
The Review of Symbolic Logic , Volume 15 , Issue 2 , June 2022 , pp. 537 - 551
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Copyright
© The Author(s), 2020. Published by Cambridge University Press on behalf of The Association for Symbolic Logic

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References

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