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Not everyone was happy with the definition by analogy: some philosophers, such as Peter van Inwagen, argued that—even given the definition by analogy—they still had no real idea what a temporal part was meant to be, [3]: 131 whilst others have felt that whether temporal parts existed or not is merely a verbal dispute (Eli Hirsch holds this view).
The temporal bone consists of four parts—the squamous, mastoid, petrous and tympanic parts. [1] [2] The squamous part is the largest and most superiorly positioned relative to the rest of the bone.
The temporal lobe is located beneath the lateral fissure on both cerebral hemispheres of the mammalian brain. [3] The temporal lobe is involved in processing sensory input into derived meanings for the appropriate retention of visual memory, language comprehension, and emotion association. [4]: 21 Temporal refers to the head's temples.
Four-dimensionalism is a name for different positions. One of these uses four-dimensionalism as a position of material objects with respect to dimensions. Four-dimensionalism is the view that in addition to spatial parts, objects have temporal parts. [7] According to this view, four-dimensionalism cannot be used as a synonym for perdurantism.
This conception of an individual as always present is opposed to perdurantism or four-dimensionalism, which maintains that an object is a series of temporal parts or stages, requiring a B-theory of time. The use of "endure" and "perdure" to distinguish two ways in which an object can be thought to persist can be traced to David Lewis.
It is a fusion of all the perdurant's instantaneous time slices compiled and blended into a complete mereological whole. Perdurantism posits that temporal parts alone are what ultimately change. Katherine Hawley in How Things Persist states that change is "the possession of different properties by different temporal parts of an object". [2]
Petrous comes from the Latin word petrosus, meaning "stone-like, hard". It is one of the densest bones in the body. In other mammals, it is a separate bone, the petrosal bone. The petrous bone is important for studies of ancient DNA from skeletal remains, as it tends to contain extremely well-preserved DNA.
[10] [11] Different parts of this system are given different names: White myelinated fibers that cover the ventricular (deep) parts of hippocampus make alveus. Fibers that cover the temporal parts of hippocampus make a fiber bundle that is called fimbria. Going from temporal to septal (dorsal) parts of hippocampus fimbria collects more and more ...