| 单词 | associative law | 
| 释义 | associative lawnoun  : a law indicating immateriality in the grouping of variables    specifically : any law of the form (φRχ)Rψ=φR(χRψ) where φ, χ, ψ are variables and R a dyadic operator [as (a + b) + c=a + (b + c) in arithmetic or (pvq)vr.≡. p v(qvr) in the propositional calculus]   called also principle of association | 
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