Yes, Derrida's deconstructionist philosophy can indeed be helpful in the context of post-dualism within philosophical posthumanism. Derrida's approach to deconstruction involves closely examining and critiquing binary oppositions and hierarchical structures that underpin dualistic thinking.
Deconstruction challenges the stability and hierarchy of dualistic categories by revealing the inherent instability and interdependence within them. Derrida argues that language and concepts are always in flux, and meanings are never fixed or absolute. Therefore, attempts to rigidly separate entities into opposing categories inevitably lead to oversimplification and exclusion.
In the context of post-dualism, deconstruction can help dismantle dualistic frameworks by exposing the fluidity and ambiguity inherent in the boundaries between concepts such as human/animal, mind/body, or nature/culture. By deconstructing these dualisms, Derrida's approach opens up space for more nuanced understandings of identity, agency, and relationship, which align with the aims of post-dualism in philosophical posthumanism.
Furthermore, Derrida's emphasis on the "trace" or the presence of absence underscores the interconnectedness and mutual constitution of seemingly separate entities. This resonates with the post-dualistic notion of recognizing the entanglement and interdependence of all beings, human and non-human alike.
In summary, Derrida's deconstructionist philosophy offers valuable insights and tools for challenging dualistic thinking and promoting post-dualistic perspectives within philosophical posthumanism.