There does not seem to be any independent motivation for thinking the content of the proposition has changed.
We will discuss this type of necessity in sections 2.3 and 2.6, but we can begin with the intuitive idea that there is a kind of necessity that a proposition has now when the content of the proposition is about something that occurred in the past.
In this way, Leslie and Roth [ 6] proposed that a major requirement for computing such representations is a mechanism that decouples the content of the proposition (it is raining) from reality.
In any case, Abelard's point clearly is that he takes the causal relation to hold between the significata of whole propositions, regardless of the particular content of these propositions, or the particular kind of causality involved.
Or one can try to save one's holism by allowing that the different states of mind cause (the contents of) the propositions to be different.
These factors determine the content of the diagonal proposition attributed to the believer.
If in specifying the conditions under which the actual and obtainable sense-data relevant to one material-object proposition would occur, it were necessary to make essential reference to other material objects, then the account of the content of the first proposition would not yet be completely in sense-datum terms.
If they maintained that the content of the evaluative proposition is either identical with the volition or causes it, then they were confusing the "moral motive" with the "physical efficient," the physical efficient being the element of the cause that provides the active power (D 73, W 2.565).
The idea is that facts make true certain basic propositions, and the truth-value of the remaining, more complex propositions is determined by the basic truths and the particular content of these propositions.
To be immune from doubt does not mean simply that you do not doubt a proposition, or even that it resists a momentary attempt to doubt; the real criterion for truth is that the content of a proposition is so clearly perceived that the will is drawn to it in such a way that the will's affirmation cannot be shaken even by the systematic and sustained doubts of the Meditations.
If the idea of cancellation in acts of contradictions is applied to obtain an understanding of sentential negation, the content of or proposition expressed by $\osim A$ is the result of erasing or cancelling the proposition expressed by $A$.
