Judged: two independent readers; copy check clear.

modulus

modulus In this historical source, modulus is a logic term proposed by Schröder for four basic relational forms used in reasoning with dual relatives: negation, identity, exclusion from a universe, and inclusion within a universe.

In this historical source, modulus is a logic term proposed by Schröder for four basic relational forms used in reasoning with dual relatives: negation, identity, exclusion from a universe, and inclusion within a universe. The entry also points to a second use under errors of observation, but it does not explain that meaning here.

Also see

Sources

Drafting source: Baldwin Dictionary of Philosophy and Psychology, 1901. 1901 New York Macmillan original; archive index checked 2026-10-18. “Modulus” (Modulus).
public-domain-US · Source snapshot SHA-256: f299432e3bd9ede79ecae1c1e081133d27751e0177ca8a087833c784bf1a2f5e

These citations identify the drafting sources. 2/2 independent reader passes against the pinned source packet. The drafter does not count as a reader. Source institutions do not endorse this dictionary.

Cite this entry

PsychTerms (psychterms.org), CC BY 4.0, version 1. “modulus.” Development preview.

Version 1 · SHA-256: 8cf74b141d5c8e43bd3caf44fb4c609bbc0acdf4396e92c567264347ccbe0502

Edit this entry on GitHub