http://plato.stanford.edu/entries/material-constitution/ http://plato.stanford.edu/entries/material-constitution/ of The Ship of Theseus Puzzle http://plato.stanford.edu/entries/ma...-constitution/ The Ship of Theseus Puzzle http://plato.stanford.edu/entries/ma...-constitution/ http://plato.stanford.edu/entries/ma...-constitution/ ”Material Constitution” http://plato.stanford.edu/entries/material-constitution/ http://plato.stanford.edu/entries/ma...-constitution/ ”Material Constitution” metaphysics of material objects Ship of Theseus Ship of Theseus mereological nihilist