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Topics

A fundamental category in a "tree of all knowledge" denotes a top-level place to start, when browsing Tractor Wiki categories for articles. This is the top level in terms of encyclopaedia article function and content. It is intended to contain all and only the few most fundamental ontological categories which can reasonably be expected to contain every possible Wiki article under their category trees. These categories are: physical entities; biological entities; social entities; and intellectual entities.(

This category is outdated. Please update this category to reflect recent events or newly available information.

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An alternative root category, based on a somewhat more detailed initial classification, is Category:Main topic classifications. To begin browsing using Tractor Wiki's categories, you can also see this Wiki's portal for Categories.

The top level of Tractor Wiki's overall category system, containing both articles and other Wikipedia project pages, is Category:Contents.

It is possible to display the entire tree (really a directed graph) of child categories of the subcategories (e.g. the grandchild categories of the Fundamental category). To expand the tree, click the plus sign [+] to the left of the subcategories. To shrink the child subcategories, click the minus sign [-].

Derived from the wikipedia page - wikipedia:Category:Fundamental categories as part of an effort to restructure the categories within Tractor & Construction Plant Wiki.