- Philosophical Realism [PR] – is the view that a certain kind of thing (ranging widely from abstract objects like numbers to moral statements to the physical world itself) has mind-independent existence, i.e. that it exists even in the absence of any mind perceiving it or that its existence is not just a mere appearance in the eye of the beholder.
https://en.wikipedia.org/wiki/Philosophical_realism
Here is a summary of the position of Hume's matter of fact;
https://iep.utm.edu/hume/#H2
PERCEPTIONS
A. Ideas – from Impressions [..B]
-1. From memory
-2. From imagination
---a. From fancy
---b. From Understanding
-----(1) Involving relations of ideas
-----(2) Involving matters of fact
B. Impressions
-1. Of sensation (external) - external world, Unknown causes
-2. Of reflection (internal) – From Ideas [A] in a certain way
Hume's matter-of-fact is from Understanding, Imagination, Ideas.
Ideas are
1. from Impression which are either from external sensation from external world or
2. from internal Impression from Ideas.
There is no circularity here because these ideas are new ideas repackaged from the original ideas to in turn cause the impressions of reflection.
But as the external world to Hume is not a mind-independent external world but rather it is an external world that is fabricated by the mind.
see:
Hume: External World is a Fabrication
viewtopic.php?t=40791
As such, what is matters-of-fact in Hume's case are fabrication [projections] of the mind. Hume's matters-of-fact cannot be absolutely mind-independent.
Hume's basis of morality is also based on a human-based moral FSK. [TBA. to justify]
Therefore philosophical realists like PH and IC has not basis to rely on Hume's 'No Ought from Is' to reject empirical objective moral facts from a credible moral FSK.
The critical point here is;
Hume's matters-of-fact is not the same as the philosophical realists' matters-of-fact that is absolutely independent of the human conditions [mind].
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