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: a sqequal: 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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