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Definition df-id1 50
Description: Define asymmetrical identity (for "Non-Orthomodular Models..." paper).
Assertion
Ref Expression
df-id1 (a ==1 b) = ((a v b') ^ (a' v (a ^ b)))
Detailed syntax breakdown of Definition df-id1
StepHypRef Expression
1 wva . . 3 term a
2 wvb . . 3 term b
31, 2wid1 18 . 2 term (a ==1 b)
42wn 4 . . . 4 term b'
51, 4wo 6 . . 3 term (a v b')
61wn 4 . . . 4 term a'
71, 2wa 7 . . . 4 term (a ^ b)
86, 7wo 6 . . 3 term (a' v (a ^ b))
95, 8wa 7 . 2 term ((a v b') ^ (a' v (a ^ b)))
103, 9wb 1 1 wff (a ==1 b) = ((a v b') ^ (a' v (a ^ b)))
Colors of variables: term
This definition is referenced by:  nomb41  299  nomcon1  302  nomcon2  303  nom21  314  nom52  333  lem3.3.7i1e1  1060  lem3.3.7i1e2  1061  wdid0id1  1110
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