Construct · 1 fields · 1 citations

obverse: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
obverse1 CONSTRUCTLogical obverseCOPI · OBVERSION

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Term logic

the equivalent proposition formed by changing a categorical proposition's quality and replacing its predicate with the complement.

In term logic, the obverse of a categorical proposition is the equivalent statement reached by obversion: changing the proposition's quality (affirmative to negative, or the reverse) and replacing the predicate with its complement, so that 'all S are P' becomes 'no S are non-P'. Copi, Cohen, and McMahon's Introduction to Logic presents obversion as one of the immediate inferences that always preserve truth. The referent is a truth-preserving transformation of a proposition (a formal operation on terms), unrelated to the face of a coin beyond the shared word.[1]

Unit
A truth-preserving transformation yielding an equivalent proposition
Recovery means
Not applicable
Measured by
Verified by the rules of obversion and the logical equivalence of the resulting proposition

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Nearby constructs

coin2 fields · 2 citationsjingle · one word, two constructsattribution3 fields · 6 citationsjingle · one word, three constructs

References

  1. Copi, I. M., Cohen, C., & McMahon, K. (2011). Introduction to logic (14th ed.). Prentice Hall. ISBN 9780205820375

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