title: Argument-forms which turn invalid over infinite domains: Physicalism as supertask?

authors: Legg, Catherine

subjects: argument-forms

abstract: Argument-forms exist which are valid over finite but not infinite domains. Despite understanding of this by formal logicians, philosophers can be observed treating as valid arguments which are in fact invalid over infinite domains. In support of this claim I will first present an argument against the classical pragmatist theory of truth by Mark Johnston. Then, more ambitiously, I will suggest the fallacy lurks in certain arguments for physicalism taken for granted by many philosophers today.

text: Argument-forms which turn invalid over infinite domains: Physicalism as supertask? Argument-forms exist which are valid over finite but not infinite domains. Despite understanding of this by formal logicians, philosophers can be observed treating as valid arguments which are in fact invalid over infinite domains. In support of this claim I will first present an argument against the classical pragmatist theory of truth by Mark Johnston. Then, more ambitiously, I will suggest the fallacy lurks in certain arguments for physicalism taken for granted by many philosophers today.

year: 2008

title: Exact solutions for steady-state, planar, magnetic reconnection in an incompressible viscous plasma

authors: Fabling, R.B.

subjects: mathematics

abstract: The exact planar reconnection analysis of Craig and Henton [Astrophys. J. 450, 280 (1995)] is extended to include the finite viscosity of the fluid and the presence of nonplanar components in the magnetic and velocity fields. It is shown that fast reconnection can be achieved for sufficiently small values of the kinematic viscosity. In particular, the dissipation rate is sustained by the strong amplification of planar magnetic field components advected toward the neutral point. By contrast, nonplanar field components are advected without amplification and so dissipate energy at the slow Sweet–Parker rate.

text: Exact solutions for steady-state, planar, magnetic reconnection in an incompressible viscous plasma The exact planar reconnection analysis of Craig and Henton [Astrophys. J. 450, 280 (1995)] is extended to include the finite viscosity of the fluid and the presence of nonplanar components in the magnetic and velocity fields. It is shown that fast reconnection can be achieved for sufficiently small values of the kinematic viscosity. In particular, the dissipation rate is sustained by the strong amplification of planar magnetic field components advected toward the neutral point. By contrast, nonplanar field components are advected without amplification and so dissipate energy at the slow Sweet–Parker rate.

year: 1996-06

title: Te Poutikanga

authors: Maxwell, Te Kahautu

abstract: Te Poutikanga was composed to pay homage to the newly appointed spiritual leader of Te Haahi Ringatū Mr Wirangi Pera who was appointed on the 1 January 2014. This composition was performed by ŌpōtikiMai Tawhiti at the Mātaatua Regional Kapa Haka Competition and placed first in the Whakawātea discipline.

text: Te Poutikanga Te Poutikanga was composed to pay homage to the newly appointed spiritual leader of Te Haahi Ringatū Mr Wirangi Pera who was appointed on the 1 January 2014. This composition was performed by ŌpōtikiMai Tawhiti at the Mātaatua Regional Kapa Haka Competition and placed first in the Whakawātea discipline.

year: 2014-01-25