Joshua C. Thurow

In his recent book Albert Casullo rejects the claim that if a belief is defeasible by non-experiential evidence then it is defeasible by experiential evidence. This claim is a crucial premise in a simple argument for the experiential defeasibility of a priori justification. I defend the premise against Casullo's objection, the main problem with which is that he does not take into account the evidential role of multiple corroborating sources of testimony. I conclude that the crucial premise is true and that the simple argument is sound; thus many of our a priori justified beliefs are experientially defeasible

In this paper I develop and defend a new theory of the Atonement - the Communal Substitution Theory. According to the Communal Substitution Theory, by dying on the cross Jesus either takes on the punishment for, or offers satisfaction for, the sins of the human community. Individual humans have sinned, but human communities have sinned as well. Jesus dies for the communal sins. As a result, human communities are forgiven and reconciled to God, and through the event of communal forgiveness, individual human sins can be forgiven as well. Moving the focal point of atonement to communal sins has various advantages: well-known objections to satisfaction and penal theories are avoided, and many of the advantages of other theories of the atonement are organically integrated into the communal substitution theory.

Paul Benacerraf’s argument that mathematical realism is apparently incompatible with mathematical knowledge has been widely thought to also show that a priori knowledge in general is problematic. Although many philosophers have rejected Benacerraf’s argument because it assumes a causal theory of knowledge, some maintain that Benacerraf nevertheless put his finger on a genuine problem, even though he didn’t state the problem in its most challenging form. After diagnosing what went wrong with Benacerraf’s argument, I argue that a new, more challenging, version of Benacerraf’s problem can be constructed. The new version—what I call the Defeater Version—of Benacerraf’s problem makes use of a no-defeater condition on knowledge and justification. I conclude by arguing that the best way to avoid the problem is to construct a theory of how a priori judgments reliably track the facts. I also suggest four different kinds of theories worth pursuing