Difference between revisions of "Graph, Wall, Tome"

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If one wants to summarise our knowledge of physics in the briefest possible terms, there are three really fundamental observations:
If one wants to summarise our knowledge of physics in the briefest possible terms, there are three really fundamental observations:
(i) Spacetime is a pseudo-Riemannian manifold : $$M$$, endowed with a metric tensor and governed by geometrical laws.
(i) Spacetime is a pseudo-Riemannian manifold, $$M$$, endowed with a metric tensor and governed by geometrical laws.
(ii) Over M is a vector bundle $$X$$ with a nonabelian gauge group : $$G$$.
(ii) Over M is a vector bundle $$X$$ with a nonabelian gauge group : $$G$$.
(iii) Fermions are sections of $$(\hat{S}{+} \otimes V{R}) \oplus (\hat{S}_ \otimes V_{\bar{R}})$$. $$R$$ and $$\bar{R}$$ are not isomorphic; their failure to be isomorphic explains why the light fermions are light and presumably has its origins in representation difference $$\Delta$$ in some underlying theory.
(iii) Fermions are sections of $$(\hat{S}{+} \otimes V{R}) \oplus (\hat{S}_ \otimes V_{\bar{R}})$$. $$R$$ and $$\bar{R}$$ are not isomorphic; their failure to be isomorphic explains why the light fermions are light and presumably has its origins in representation difference $$\Delta$$ in some underlying theory.
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If one wants to summarise our knowledge of physics in the briefest possible terms, there are three really fundamental observations:
If one wants to summarise our knowledge of physics in the briefest possible terms, there are three really fundamental observations:


# [https://en.wikipedia.org/wiki/Spacetime Spacetime] is a [https://en.wikipedia.org/wiki/Pseudo-Riemannian_manifold pseudo-Riemannian manifold] : $$M$$, endowed with a [[metric tensor]] and governed by [https://en.wikipedia.org/wiki/Geometry geometrical laws].
# [https://en.wikipedia.org/wiki/Spacetime Spacetime] is a [https://en.wikipedia.org/wiki/Pseudo-Riemannian_manifold pseudo-Riemannian manifold], $$M$$, endowed with a [[metric tensor]] and governed by [https://en.wikipedia.org/wiki/Geometry geometrical laws].
# Over $$M$$ is a [https://en.wikipedia.org/wiki/Principal_bundle principal bundle] : $$P_{G}$$, with a [https://en.wikipedia.org/wiki/Non-abelian_group non-abelian structure group] : $$G$$.
# Over $$M$$ is a [https://en.wikipedia.org/wiki/Principal_bundle principal bundle] : $$P_{G}$$, with a [https://en.wikipedia.org/wiki/Non-abelian_group non-abelian structure group] : $$G$$.
# [https://en.wikipedia.org/wiki/Fermion Fermions] are sections of $$(\hat{S}_{+} \otimes V_{R}) \oplus (\hat{S}\_ \otimes V_{\bar{R}})$$. $$R$$ and $$\bar{R}$$ are not [https://en.wikipedia.org/wiki/Isomorphism isomorphic]; their failure to be isomorphic explains why the light fermions are light.
# [https://en.wikipedia.org/wiki/Fermion Fermions] are sections of $$(\hat{S}_{+} \otimes V_{R}) \oplus (\hat{S}\_ \otimes V_{\bar{R}})$$. $$R$$ and $$\bar{R}$$ are not [https://en.wikipedia.org/wiki/Isomorphism isomorphic]; their failure to be isomorphic explains why the light fermions are light.
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