Theorem iscnrm3rlem5 46126

Description: Lemma for iscnrm3rlem6 46127. (Contributed by Zhi Wang, 5-Sep-2024.)

Hypotheses

Ref	Expression
iscnrm3rlem4.1	⊢ (𝜑 → 𝐽 ∈ Top)
iscnrm3rlem4.2	⊢ (𝜑 → 𝑆 ⊆ ∪ 𝐽)
iscnrm3rlem5.3	⊢ (𝜑 → 𝑇 ⊆ ∪ 𝐽)

Assertion

Ref	Expression
iscnrm3rlem5	⊢ (𝜑 → (∪ 𝐽 ∖ (((cls‘𝐽)‘𝑆) ∩ ((cls‘𝐽)‘𝑇))) ∈ 𝐽)

Proof of Theorem iscnrm3rlem5

Step	Hyp	Ref	Expression
1		iscnrm3rlem4.1	. . . 4 ⊢ (𝜑 → 𝐽 ∈ Top)
2		iscnrm3rlem4.2	. . . 4 ⊢ (𝜑 → 𝑆 ⊆ ∪ 𝐽)
3		eqid 2738	. . . . 5 ⊢ ∪ 𝐽 = ∪ 𝐽
4	3	clscld 22106	. . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑆 ⊆ ∪ 𝐽) → ((cls‘𝐽)‘𝑆) ∈ (Clsd‘𝐽))
5	1, 2, 4	syl2anc 583	. . 3 ⊢ (𝜑 → ((cls‘𝐽)‘𝑆) ∈ (Clsd‘𝐽))
6		iscnrm3rlem5.3	. . . 4 ⊢ (𝜑 → 𝑇 ⊆ ∪ 𝐽)
7	3	clscld 22106	. . . 4 ⊢ ((𝐽 ∈ Top ∧ 𝑇 ⊆ ∪ 𝐽) → ((cls‘𝐽)‘𝑇) ∈ (Clsd‘𝐽))
8	1, 6, 7	syl2anc 583	. . 3 ⊢ (𝜑 → ((cls‘𝐽)‘𝑇) ∈ (Clsd‘𝐽))
9		incld 22102	. . 3 ⊢ ((((cls‘𝐽)‘𝑆) ∈ (Clsd‘𝐽) ∧ ((cls‘𝐽)‘𝑇) ∈ (Clsd‘𝐽)) → (((cls‘𝐽)‘𝑆) ∩ ((cls‘𝐽)‘𝑇)) ∈ (Clsd‘𝐽))
10	5, 8, 9	syl2anc 583	. 2 ⊢ (𝜑 → (((cls‘𝐽)‘𝑆) ∩ ((cls‘𝐽)‘𝑇)) ∈ (Clsd‘𝐽))
11	3	cldopn 22090	. 2 ⊢ ((((cls‘𝐽)‘𝑆) ∩ ((cls‘𝐽)‘𝑇)) ∈ (Clsd‘𝐽) → (∪ 𝐽 ∖ (((cls‘𝐽)‘𝑆) ∩ ((cls‘𝐽)‘𝑇))) ∈ 𝐽)
12	10, 11	syl 17	1 ⊢ (𝜑 → (∪ 𝐽 ∖ (((cls‘𝐽)‘𝑆) ∩ ((cls‘𝐽)‘𝑇))) ∈ 𝐽)

Syntax hints:   → wi 4   ∈ wcel 2108   ∖ cdif 3880   ∩ cin 3882   ⊆ wss 3883  ∪ cuni 4836  ‘cfv 6418  Topctop 21950  Clsdccld 22075  clsccl 22077

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-int 4877  df-iun 4923  df-iin 4924  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-top 21951  df-cld 22078  df-cls 22080

This theorem is referenced by:  iscnrm3rlem6  46127