theory englannista suomeksi
A description of an event or system that is considered to be accurate.
*1646, (w), ''Pseudodoxia Epidemica'', VII.19:
- As they encrease the hatred of vice in some, so doe they enlarge the theory of wickednesse in all.
A coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed, or which sets out the laws and principles of something known or observed; a hypothesis confirmed by observation, experiment etc. (defdate)
1843, (w), ""A System of Logic, Ratiocinative and Inductive, ..., Bk V, Ch 7:
- In its most proper acceptation, theory means the completed result of philosophical induction from experience.
2002, Duncan Steel, ''The Guardian'', 23 May 2002:
- It was only when Einstein's theory of relativity was published in 1915 that physicists could show that Mercury's "anomaly" was actually because Newton's gravitational theory was incomplete.
2003, (w), ''A Short History of Nearly Everything'', BCA, p. 118:
- The world would need additional decades ... before the Big Bang would begin to move from interesting idea to established theory.
2009, (w), ''The Greatest Show On Earth: The Evidence for Evolution'', Bantam, p. 10:
- Scientists and creationists are understanding the word "theory" in two very different senses. Evolution is a theory in the same sense as the heliocentric theory. In neither case should the word "only" be used, as in "only a theory".
''Knot theory classifies the mappings of a circle into 3-space.''
2003, Sean Coughlan, ''The Guardian'', 21 Jun 2003:
- The theory is that by stripping costs to the bone, they are able to offer ludicrously low fares.
A set of axioms together with all statements derivable from them; ''or'', a set of statements which are (w). ''Equivalently,'' a language plus a set of axioms (from which can then be derived theorems). The statements may be required to all be bound (''i.e.'', to have no variables).
''A theory is consistent if it has a model.''