Theorem ocv0 19840

Description: The orthocomplement of the empty set. (Contributed by Mario Carneiro, 23-Oct-2015.)

Hypotheses

Ref	Expression
ocvz.v	⊢ 𝑉 = (Base‘𝑊)
ocvz.o	⊢ ⊥ = (ocv‘𝑊)

Assertion

Ref	Expression
ocv0	⊢ ( ⊥ ‘∅) = 𝑉

Proof of Theorem ocv0

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		0ss 3924	. . 3 ⊢ ∅ ⊆ 𝑉
2		ocvz.v	. . . 4 ⊢ 𝑉 = (Base‘𝑊)
3		eqid 2610	. . . 4 ⊢ (·𝑖‘𝑊) = (·𝑖‘𝑊)
4		eqid 2610	. . . 4 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊)
5		eqid 2610	. . . 4 ⊢ (0g‘(Scalar‘𝑊)) = (0g‘(Scalar‘𝑊))
6		ocvz.o	. . . 4 ⊢ ⊥ = (ocv‘𝑊)
7	2, 3, 4, 5, 6	ocvval 19830	. . 3 ⊢ (∅ ⊆ 𝑉 → ( ⊥ ‘∅) = {𝑥 ∈ 𝑉 ∣ ∀𝑦 ∈ ∅ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))})
8	1, 7	ax-mp 5	. 2 ⊢ ( ⊥ ‘∅) = {𝑥 ∈ 𝑉 ∣ ∀𝑦 ∈ ∅ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))}
9		ral0 4028	. . . 4 ⊢ ∀𝑦 ∈ ∅ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))
10	9	rgenw 2908	. . 3 ⊢ ∀𝑥 ∈ 𝑉 ∀𝑦 ∈ ∅ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))
11		rabid2 3096	. . 3 ⊢ (𝑉 = {𝑥 ∈ 𝑉 ∣ ∀𝑦 ∈ ∅ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))} ↔ ∀𝑥 ∈ 𝑉 ∀𝑦 ∈ ∅ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊)))
12	10, 11	mpbir 220	. 2 ⊢ 𝑉 = {𝑥 ∈ 𝑉 ∣ ∀𝑦 ∈ ∅ (𝑥(·𝑖‘𝑊)𝑦) = (0g‘(Scalar‘𝑊))}
13	8, 12	eqtr4i 2635	1 ⊢ ( ⊥ ‘∅) = 𝑉

Syntax hints:   = wceq 1475  ∀wral 2896  {crab 2900   ⊆ wss 3540  ∅c0 3874  ‘cfv 5804  (class class class)co 6549  Basecbs 15695  Scalarcsca 15771  ·_𝑖cip 15773  0_gc0g 15923  ocvcocv 19823

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847

This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-ral 2901  df-rex 2902  df-rab 2905  df-v 3175  df-sbc 3403  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-op 4132  df-uni 4373  df-br 4584  df-opab 4644  df-mpt 4645  df-id 4953  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-fv 5812  df-ov 6552  df-ocv 19826

This theorem is referenced by:  ocvz  19841  css1  19853