Theorem wdid0id5 1111

Description: Show that quantum identity follows from classical identity in a WDOL. (Contributed by NM, 5-Mar-2006.)

Hypothesis

Ref	Expression
wdid0id5.1	(a ≡0 b) = 1

Assertion

Ref	Expression
wdid0id5	(a ≡ b) = 1

Proof of Theorem wdid0id5

Step	Hyp	Ref	Expression
1		dfb 94	. 2 (a ≡ b) = ((a ∩ b) ∪ (a⊥ ∩ b⊥ ))
2		df-id0 49	. . . . 5 (a ≡0 b) = ((a⊥ ∪ b) ∩ (b⊥ ∪ a))
3	2	ax-r1 35	. . . 4 ((a⊥ ∪ b) ∩ (b⊥ ∪ a)) = (a ≡0 b)
4		wdid0id5.1	. . . 4 (a ≡0 b) = 1
5	3, 4	ax-r2 36	. . 3 ((a⊥ ∪ b) ∩ (b⊥ ∪ a)) = 1
6		wa4 194	. . . . . . . . 9 (((a ∪ b⊥ ) ∪ (a ∪ a⊥ )) ≡ (a ∪ a⊥ )) = 1
7	6	wleoa 376	. . . . . . . 8 (((a ∪ b⊥ ) ∩ (a ∪ a⊥ )) ≡ (a ∪ b⊥ )) = 1
8	7	wr1 197	. . . . . . 7 ((a ∪ b⊥ ) ≡ ((a ∪ b⊥ ) ∩ (a ∪ a⊥ ))) = 1
9		wancom 203	. . . . . . 7 (((a ∪ b⊥ ) ∩ (a ∪ a⊥ )) ≡ ((a ∪ a⊥ ) ∩ (a ∪ b⊥ ))) = 1
10	8, 9	wr2 371	. . . . . 6 ((a ∪ b⊥ ) ≡ ((a ∪ a⊥ ) ∩ (a ∪ b⊥ ))) = 1
11		wa2 192	. . . . . 6 ((b⊥ ∪ a) ≡ (a ∪ b⊥ )) = 1
12		wddi3 1109	. . . . . 6 ((a ∪ (a⊥ ∩ b⊥ )) ≡ ((a ∪ a⊥ ) ∩ (a ∪ b⊥ ))) = 1
13	10, 11, 12	w3tr1 374	. . . . 5 ((b⊥ ∪ a) ≡ (a ∪ (a⊥ ∩ b⊥ ))) = 1
14		wa4 194	. . . . . . . 8 (((b ∪ a⊥ ) ∪ (b ∪ b⊥ )) ≡ (b ∪ b⊥ )) = 1
15	14	wleoa 376	. . . . . . 7 (((b ∪ a⊥ ) ∩ (b ∪ b⊥ )) ≡ (b ∪ a⊥ )) = 1
16	15	wr1 197	. . . . . 6 ((b ∪ a⊥ ) ≡ ((b ∪ a⊥ ) ∩ (b ∪ b⊥ ))) = 1
17		wa2 192	. . . . . 6 ((a⊥ ∪ b) ≡ (b ∪ a⊥ )) = 1
18		wddi3 1109	. . . . . 6 ((b ∪ (a⊥ ∩ b⊥ )) ≡ ((b ∪ a⊥ ) ∩ (b ∪ b⊥ ))) = 1
19	16, 17, 18	w3tr1 374	. . . . 5 ((a⊥ ∪ b) ≡ (b ∪ (a⊥ ∩ b⊥ ))) = 1
20	13, 19	w2an 373	. . . 4 (((b⊥ ∪ a) ∩ (a⊥ ∪ b)) ≡ ((a ∪ (a⊥ ∩ b⊥ )) ∩ (b ∪ (a⊥ ∩ b⊥ )))) = 1
21		wancom 203	. . . 4 (((a⊥ ∪ b) ∩ (b⊥ ∪ a)) ≡ ((b⊥ ∪ a) ∩ (a⊥ ∪ b))) = 1
22		wddi4 1110	. . . 4 (((a ∩ b) ∪ (a⊥ ∩ b⊥ )) ≡ ((a ∪ (a⊥ ∩ b⊥ )) ∩ (b ∪ (a⊥ ∩ b⊥ )))) = 1
23	20, 21, 22	w3tr1 374	. . 3 (((a⊥ ∪ b) ∩ (b⊥ ∪ a)) ≡ ((a ∩ b) ∪ (a⊥ ∩ b⊥ ))) = 1
24	5, 23	wwbmp 205	. 2 ((a ∩ b) ∪ (a⊥ ∩ b⊥ )) = 1
25	1, 24	ax-r2 36	1 (a ≡ b) = 1

This proof depends on syntax axioms:   = wb 1  ^⊥ wn 4   ≡ tb 5   ∪ wo 6   ∩ wa 7  1wt 8   ≡₀ wid0 17

This proof depends on axioms:  ax-a1 30  ax-a2 31  ax-a3 32  ax-a4 33  ax-a5 34  ax-r1 35  ax-r2 36  ax-r4 37  ax-r5 38  ax-wom 361  ax-wdol 1104

This proof depends on definitions:  df-b 39  df-a 40  df-t 41  df-f 42  df-i1 44  df-i2 45  df-id0 49  df-le 129  df-le1 130  df-le2 131  df-cmtr 134

This theorem is used by:  wdka4o  1116