 The second line of thought that Campbell develops in support of the view that attention explains demonstrative reference is one pertaining to deductive arguments in which the premises refer to items that are picked out by demonstratives: Arguments such as ‘(1) That is F. (2) That is G. Therefore (3) That is F and G’. Campbell’s thought here is that such arguments depend for their validity on there being no possibility of equivocating on the meaning of ‘that’, as it occurs in the two separate premises. Such arguments can only figure in rationally-entitling reasoning so long as there is a single fixing of the referent of ‘that’ in both premises. This reference fixing, Campbell thinks, is achieved if and only if there is no redirection of attention between the premises. Again this is intended to show more than just that there is some causal or evidential relation between attending and referring. It is intended to show that the role played by attention in fixing the reference of a demonstrative is analogous to the role played by a Fregean Sense in fixing the reference of a proper name (Campbell, 2002, Chapter 5).