Nuprl Lemma : ring_term_value_minus_lemma
∀r,a,f:Top.  (ring_term_value(f;"-"a) ~ -r ring_term_value(f;a))
Proof
Definitions occuring in Statement : 
ring_term_value: ring_term_value(f;t), 
rng_minus: -r, 
itermMinus: "-"num, 
top: Top, 
all: ∀x:A. B[x], 
apply: f a, 
sqequal: s ~ t
Definitions unfolded in proof : 
member: t ∈ T, 
all: ∀x:A. B[x], 
int_term_ind: int_term_ind, 
itermMinus: "-"num, 
ring_term_value: ring_term_value(f;t)
Lemmas referenced : 
top_wf
Rules used in proof : 
hypothesis, 
extract_by_obid, 
introduction, 
cut, 
lambdaFormation, 
computationStep, 
sqequalTransitivity, 
sqequalReflexivity, 
sqequalRule, 
sqequalSubstitution
Latex:
\mforall{}r,a,f:Top.    (ring\_term\_value(f;"-"a)  \msim{}  -r  ring\_term\_value(f;a))
Date html generated:
2018_05_21-PM-03_15_34
Last ObjectModification:
2018_01_25-PM-02_17_01
Theory : rings_1
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