Thema Subject Categories 1.3

Previous versions of Thema are still available 1.2 1.1 1.0.

Browse the Thema subject categories hierarchy, or search for a specific term within the hierarchy.

See the search hints below.

Notation Category heading Add Mod ?
P Mathematics & Science
PD Science: general issues
PDX History of science
See also: TBX History of engineering & technology

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