The British Journal for the Philosophy of Science Advance Access originally published online on February 5, 2009
The British Journal for the Philosophy of Science 2009 60(2):239-252; doi:10.1093/bjps/axp001
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Which Abstraction Principles are Acceptable? Some Limitative Results
Department of Philosophy, University of Bristol, 9 Woodland Rd. Bristol, BS8 1TB, UK Oystein.Linnebo{at}bristol.ac.uk
Pembroke College, University of Oxford, Oxford OX1 1DW, UK gabriel.uzquiano{at}philosophy.ox.ac.uk
| Abstract |
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Neo-Fregean logicism attempts to base mathematics on abstraction principles. Since not all abstraction principles are acceptable, the neo-Fregeans need an account of which ones are. One of the most promising accounts is in terms of the notion of stability; roughly, that an abstraction principle is acceptable just in case it is satisfiable in all domains of sufficiently large cardinality. We present two counterexamples to stability as a sufficient condition for acceptability and argue that these counterexamples can be avoided only by major departures from the existing neo-Fregean programme.
- Introduction
- A Simple Counterexample
- A Fregean Counterexample
- The Argument
- 4.1 Defending step 1
- 4.2 Defending step 2
- 4.3 Defending step 3
- 4.4 Defending step 4
- 4.2 Defending step 2
- 4.1 Defending step 1
- Concluding Remarks