law of thought
C1Academic, Philosophical, Technical
Definition
Meaning
A fundamental, self-evident principle that underlies all reasoning, such as the laws of identity, non-contradiction, and excluded middle.
In modern contexts, it can refer to any axiomatic principle in logic or cognitive science that is considered foundational for coherent thinking.
Linguistics
Semantic Notes
While traditionally philosophical, the term is sometimes used metaphorically in discussions of AI, psychology, and linguistics to describe foundational cognitive rules.
Dialectal Variation
British vs American Usage
Differences
No significant usage differences exist. Both dialects use it identically within academic philosophy and logic.
Connotations
The term carries a formal, classical connotation, implying foundational, indisputable principles.
Frequency
Extremely low frequency in general usage but stable and identical in academic texts in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
The [Adjective] law of thought [Verb]...According to the law of thought, ...It is a fundamental law of thought that...To violate a law of thought is to...Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “To be as certain as a law of thought.”
Usage
Context Usage
Business
Rare. Could be used metaphorically: 'In this company, the law of thought is that the customer comes first.'
Academic
Primary context. Used in philosophy, logic, mathematics, and cognitive science to denote foundational axioms of reasoning.
Everyday
Virtually never used.
Technical
Used in logic and AI to refer to foundational, axiomatic principles on which systems are built.
Examples
By Part of Speech
verb
British English
- The system was designed to law-of-thought its deductions.
- They attempted to law-of-thought the problem, but it was too complex.
American English
- The AI doesn't simply calculate; it aims to law-of-thought its way to a conclusion.
- You can't just law-of-thought a solution to an ethical dilemma.
adverb
British English
- He reasoned law-of-thoughtly from the given axioms.
- The conclusion followed law-of-thoughtly.
American English
- She argued law-of-thoughtly, step by inevitable step.
- The system processes data law-of-thoughtly.
adjective
British English
- His argument had a law-of-thought quality to it.
- We need a more law-of-thought approach to this policy.
American English
- Her reasoning was strikingly law-of-thought.
- It was a law-of-thought premise, undeniable in its simplicity.
Examples
By CEFR Level
- (Not applicable for this C1-level term)
- (Not applicable for this C1-level term)
- Philosophers often discuss the basic laws of thought.
- One law of thought says something cannot be both true and false at the same time.
- The law of non-contradiction, a classic law of thought, is foundational to classical logic.
- Modern logicians sometimes challenge the absolute necessity of the traditional laws of thought.
- Any coherent argument must ultimately rest upon some version of the laws of thought.
Learning
Memory Aids
Mnemonic
Think of a judge's gavel hitting a **thought** bubble, establishing a **law** inside it. This image links the idea of a formal rule (law) governing thinking (thought).
Conceptual Metaphor
THINKING IS A STRUCTURE BUILT ON FOUNDATIONAL RULES; LOGICAL PRINCIPLES ARE THE LAWS OF A COUNTRY FOR THE MIND.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating it as 'закон мысли', which is overly literal and not a standard term. The direct equivalent is 'закон (или основной принцип) мышления' or, more precisely in logic, 'логический закон'. The phrase refers to axioms, not psychological processes.
Common Mistakes
- Using it in everyday conversation. Confusing it with 'train of thought'. Capitalising it incorrectly when not at the start of a sentence (it is not a proper noun).
Practice
Quiz
In which field is the term 'law of thought' primarily used?
FAQ
Frequently Asked Questions
They are the Law of Identity (A is A), the Law of Non-Contradiction (A cannot be both B and not-B), and the Law of Excluded Middle (for any proposition, either it is true or its negation is true).
Rarely. It's a philosophical/logical term. Psychology might study how people follow or deviate from such principles in practice, but doesn't typically posit them as normative 'laws'.
If you say 'This coffee is hot' and immediately say 'This coffee is not hot,' you've violated the law of non-contradiction, making your statements incoherent.
In classical logic, yes. However, some non-classical logics (e.g., paraconsistent or fuzzy logics) modify or reject certain laws (like the law of excluded middle) to handle paradoxes or degrees of truth.