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Theorem suppovss 32966
Description: A bound for the support of an operation. (Contributed by Thierry Arnoux, 19-Jul-2023.)
Hypotheses
Ref Expression
suppovss.f 𝐹 = (𝑥𝐴, 𝑦𝐵𝐶)
suppovss.g 𝐺 = (𝑥𝐴 ↦ (𝑦𝐵𝐶))
suppovss.a (𝜑𝐴𝑉)
suppovss.b (𝜑𝐵𝑊)
suppovss.z (𝜑𝑍𝐷)
suppovss.1 ((𝜑 ∧ (𝑥𝐴𝑦𝐵)) → 𝐶𝐷)
Assertion
Ref Expression
suppovss (𝜑 → (𝐹 supp 𝑍) ⊆ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))
Distinct variable groups:   𝐴,𝑘,𝑥,𝑦   𝐵,𝑘,𝑥,𝑦   𝑥,𝐷,𝑦   𝑥,𝐹,𝑦   𝑘,𝐺,𝑥,𝑦   𝑘,𝑍,𝑥,𝑦   𝜑,𝑘,𝑥,𝑦
Allowed substitution hints:   𝐶(𝑥,𝑦,𝑘)   𝐷(𝑘)   𝐹(𝑘)   𝑉(𝑥,𝑦,𝑘)   𝑊(𝑥,𝑦,𝑘)

Proof of Theorem suppovss
Dummy variable 𝑧 is distinct from all other variables.
StepHypRef Expression
1 suppovss.1 . . . 4 ((𝜑 ∧ (𝑥𝐴𝑦𝐵)) → 𝐶𝐷)
21ralrimivva 3214 . . 3 (𝜑 → ∀𝑥𝐴𝑦𝐵 𝐶𝐷)
3 suppovss.f . . . 4 𝐹 = (𝑥𝐴, 𝑦𝐵𝐶)
43fmpo 8064 . . 3 (∀𝑥𝐴𝑦𝐵 𝐶𝐷𝐹:(𝐴 × 𝐵)⟶𝐷)
52, 4sylib 221 . 2 (𝜑𝐹:(𝐴 × 𝐵)⟶𝐷)
6 simpr 489 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑧 = ⟨𝑥, 𝑦⟩)
76fveq2d 6886 . . . . . . 7 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹𝑧) = (𝐹‘⟨𝑥, 𝑦⟩))
8 df-ov 7414 . . . . . . . 8 (𝑥𝐹𝑦) = (𝐹‘⟨𝑥, 𝑦⟩)
9 simpllr 787 . . . . . . . . . 10 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))))
109eldifad 3925 . . . . . . . . 9 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑥𝐴)
11 simplr 780 . . . . . . . . 9 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑦𝐵)
12 simplll 786 . . . . . . . . . 10 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝜑)
1312, 10, 11, 1syl12anc 849 . . . . . . . . 9 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝐶𝐷)
143ovmpt4g 7558 . . . . . . . . 9 ((𝑥𝐴𝑦𝐵𝐶𝐷) → (𝑥𝐹𝑦) = 𝐶)
1510, 11, 13, 14syl3anc 1396 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝑥𝐹𝑦) = 𝐶)
168, 15eqtr3id 2818 . . . . . . 7 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹‘⟨𝑥, 𝑦⟩) = 𝐶)
17 suppovss.b . . . . . . . . . . . . . 14 (𝜑𝐵𝑊)
1817adantr 485 . . . . . . . . . . . . 13 ((𝜑𝑥𝐴) → 𝐵𝑊)
1918mptexd 7223 . . . . . . . . . . . 12 ((𝜑𝑥𝐴) → (𝑦𝐵𝐶) ∈ V)
20 suppovss.g . . . . . . . . . . . 12 𝐺 = (𝑥𝐴 ↦ (𝑦𝐵𝐶))
2119, 20fmptd 7110 . . . . . . . . . . 11 (𝜑𝐺:𝐴⟶V)
22 ssidd 3968 . . . . . . . . . . 11 (𝜑 → (𝐺 supp (𝐵 × {𝑍})) ⊆ (𝐺 supp (𝐵 × {𝑍})))
23 suppovss.a . . . . . . . . . . 11 (𝜑𝐴𝑉)
24 snex 5411 . . . . . . . . . . . . 13 {𝑍} ∈ V
2524a1i 11 . . . . . . . . . . . 12 (𝜑 → {𝑍} ∈ V)
2617, 25xpexd 7749 . . . . . . . . . . 11 (𝜑 → (𝐵 × {𝑍}) ∈ V)
2721, 22, 23, 26suppssr 8190 . . . . . . . . . 10 ((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) → (𝐺𝑥) = (𝐵 × {𝑍}))
2827fveq1d 6884 . . . . . . . . 9 ((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) → ((𝐺𝑥)‘𝑦) = ((𝐵 × {𝑍})‘𝑦))
2912, 9, 28syl2anc 595 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → ((𝐺𝑥)‘𝑦) = ((𝐵 × {𝑍})‘𝑦))
30 simpr 489 . . . . . . . . . . 11 ((𝜑𝑥𝐴) → 𝑥𝐴)
3120fvmpt2 7002 . . . . . . . . . . 11 ((𝑥𝐴 ∧ (𝑦𝐵𝐶) ∈ V) → (𝐺𝑥) = (𝑦𝐵𝐶))
3230, 19, 31syl2anc 595 . . . . . . . . . 10 ((𝜑𝑥𝐴) → (𝐺𝑥) = (𝑦𝐵𝐶))
331anassrs 472 . . . . . . . . . 10 (((𝜑𝑥𝐴) ∧ 𝑦𝐵) → 𝐶𝐷)
3432, 33fvmpt2d 7004 . . . . . . . . 9 (((𝜑𝑥𝐴) ∧ 𝑦𝐵) → ((𝐺𝑥)‘𝑦) = 𝐶)
3512, 10, 11, 34syl21anc 850 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → ((𝐺𝑥)‘𝑦) = 𝐶)
36 suppovss.z . . . . . . . . . 10 (𝜑𝑍𝐷)
3712, 36syl 18 . . . . . . . . 9 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑍𝐷)
38 fvconst2g 7201 . . . . . . . . 9 ((𝑍𝐷𝑦𝐵) → ((𝐵 × {𝑍})‘𝑦) = 𝑍)
3937, 11, 38syl2anc 595 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → ((𝐵 × {𝑍})‘𝑦) = 𝑍)
4029, 35, 393eqtr3d 2812 . . . . . . 7 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝐶 = 𝑍)
417, 16, 403eqtrd 2808 . . . . . 6 ((((𝜑𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹𝑧) = 𝑍)
4241adantl3r 762 . . . . 5 (((((𝜑𝑧 ∈ ((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵)) ∧ 𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) ∧ 𝑦𝐵) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹𝑧) = 𝑍)
43 elxp2 5686 . . . . . 6 (𝑧 ∈ ((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵) ↔ ∃𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))∃𝑦𝐵 𝑧 = ⟨𝑥, 𝑦⟩)
4443bilani 509 . . . . 5 ((𝜑𝑧 ∈ ((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵)) → ∃𝑥 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))∃𝑦𝐵 𝑧 = ⟨𝑥, 𝑦⟩)
4542, 44r19.29vva 3231 . . . 4 ((𝜑𝑧 ∈ ((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵)) → (𝐹𝑧) = 𝑍)
4645adantlr 727 . . 3 (((𝜑𝑧 ∈ ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) ∧ 𝑧 ∈ ((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵)) → (𝐹𝑧) = 𝑍)
47 simpr 489 . . . . . . . 8 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑧 = ⟨𝑥, 𝑦⟩)
4847fveq2d 6886 . . . . . . 7 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹𝑧) = (𝐹‘⟨𝑥, 𝑦⟩))
49 simpllr 787 . . . . . . . . 9 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑥𝐴)
50 simplr 780 . . . . . . . . . 10 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))
5150eldifad 3925 . . . . . . . . 9 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝑦𝐵)
52 simplll 786 . . . . . . . . . 10 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝜑)
5352, 49, 51, 1syl12anc 849 . . . . . . . . 9 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝐶𝐷)
5449, 51, 53, 14syl3anc 1396 . . . . . . . 8 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝑥𝐹𝑦) = 𝐶)
558, 54eqtr3id 2818 . . . . . . 7 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹‘⟨𝑥, 𝑦⟩) = 𝐶)
5652, 49, 51, 34syl21anc 850 . . . . . . . 8 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → ((𝐺𝑥)‘𝑦) = 𝐶)
57 fvexd 6897 . . . . . . . . . . 11 (((𝜑𝑥𝐴) ∧ 𝑦𝐵) → ((𝐺𝑥)‘𝑦) ∈ V)
5833, 32, 57fmpt2d 7121 . . . . . . . . . 10 ((𝜑𝑥𝐴) → (𝐺𝑥):𝐵⟶V)
59 ssiun2 5016 . . . . . . . . . . . . 13 (𝑥𝐴 → ((𝐺𝑥) supp 𝑍) ⊆ 𝑥𝐴 ((𝐺𝑥) supp 𝑍))
6059adantl 486 . . . . . . . . . . . 12 ((𝜑𝑥𝐴) → ((𝐺𝑥) supp 𝑍) ⊆ 𝑥𝐴 ((𝐺𝑥) supp 𝑍))
61 fveq2 6882 . . . . . . . . . . . . . 14 (𝑥 = 𝑘 → (𝐺𝑥) = (𝐺𝑘))
6261oveq1d 7426 . . . . . . . . . . . . 13 (𝑥 = 𝑘 → ((𝐺𝑥) supp 𝑍) = ((𝐺𝑘) supp 𝑍))
6362cbviunv 5007 . . . . . . . . . . . 12 𝑥𝐴 ((𝐺𝑥) supp 𝑍) = 𝑘𝐴 ((𝐺𝑘) supp 𝑍)
6460, 63sseqtrdi 3985 . . . . . . . . . . 11 ((𝜑𝑥𝐴) → ((𝐺𝑥) supp 𝑍) ⊆ 𝑘𝐴 ((𝐺𝑘) supp 𝑍))
65 simpl 487 . . . . . . . . . . . . . . . 16 ((𝜑𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) → 𝜑)
66 simpr 489 . . . . . . . . . . . . . . . . 17 ((𝜑𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) → 𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))))
6766eldifad 3925 . . . . . . . . . . . . . . . 16 ((𝜑𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) → 𝑘𝐴)
6821, 22, 23, 26suppssr 8190 . . . . . . . . . . . . . . . 16 ((𝜑𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) → (𝐺𝑘) = (𝐵 × {𝑍}))
69 eleq1w 2852 . . . . . . . . . . . . . . . . . . . . 21 (𝑥 = 𝑘 → (𝑥𝐴𝑘𝐴))
7069anbi2d 641 . . . . . . . . . . . . . . . . . . . 20 (𝑥 = 𝑘 → ((𝜑𝑥𝐴) ↔ (𝜑𝑘𝐴)))
7161fneq1d 6629 . . . . . . . . . . . . . . . . . . . 20 (𝑥 = 𝑘 → ((𝐺𝑥) Fn 𝐵 ↔ (𝐺𝑘) Fn 𝐵))
7270, 71imbi12d 347 . . . . . . . . . . . . . . . . . . 19 (𝑥 = 𝑘 → (((𝜑𝑥𝐴) → (𝐺𝑥) Fn 𝐵) ↔ ((𝜑𝑘𝐴) → (𝐺𝑘) Fn 𝐵)))
7358ffnd 6707 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑥𝐴) → (𝐺𝑥) Fn 𝐵)
7472, 73chvarvv 2016 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑘𝐴) → (𝐺𝑘) Fn 𝐵)
7517adantr 485 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑘𝐴) → 𝐵𝑊)
7636adantr 485 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑘𝐴) → 𝑍𝐷)
77 fnsuppeq0 8187 . . . . . . . . . . . . . . . . . 18 (((𝐺𝑘) Fn 𝐵𝐵𝑊𝑍𝐷) → (((𝐺𝑘) supp 𝑍) = ∅ ↔ (𝐺𝑘) = (𝐵 × {𝑍})))
7874, 75, 76, 77syl3anc 1396 . . . . . . . . . . . . . . . . 17 ((𝜑𝑘𝐴) → (((𝐺𝑘) supp 𝑍) = ∅ ↔ (𝐺𝑘) = (𝐵 × {𝑍})))
7978biimpar 482 . . . . . . . . . . . . . . . 16 (((𝜑𝑘𝐴) ∧ (𝐺𝑘) = (𝐵 × {𝑍})) → ((𝐺𝑘) supp 𝑍) = ∅)
8065, 67, 68, 79syl21anc 850 . . . . . . . . . . . . . . 15 ((𝜑𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) → ((𝐺𝑘) supp 𝑍) = ∅)
8180ralrimiva 3163 . . . . . . . . . . . . . 14 (𝜑 → ∀𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))((𝐺𝑘) supp 𝑍) = ∅)
82 nfcv 2931 . . . . . . . . . . . . . . 15 𝑘(𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))
8382iunxdif3 5065 . . . . . . . . . . . . . 14 (∀𝑘 ∈ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))((𝐺𝑘) supp 𝑍) = ∅ → 𝑘 ∈ (𝐴 ∖ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))))((𝐺𝑘) supp 𝑍) = 𝑘𝐴 ((𝐺𝑘) supp 𝑍))
8481, 83syl 18 . . . . . . . . . . . . 13 (𝜑 𝑘 ∈ (𝐴 ∖ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))))((𝐺𝑘) supp 𝑍) = 𝑘𝐴 ((𝐺𝑘) supp 𝑍))
85 dfin4 4239 . . . . . . . . . . . . . . 15 (𝐴 ∩ (𝐺 supp (𝐵 × {𝑍}))) = (𝐴 ∖ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))))
86 suppssdm 8172 . . . . . . . . . . . . . . . . 17 (𝐺 supp (𝐵 × {𝑍})) ⊆ dom 𝐺
8786, 21fssdm 6726 . . . . . . . . . . . . . . . 16 (𝜑 → (𝐺 supp (𝐵 × {𝑍})) ⊆ 𝐴)
88 sseqin2 4184 . . . . . . . . . . . . . . . 16 ((𝐺 supp (𝐵 × {𝑍})) ⊆ 𝐴 ↔ (𝐴 ∩ (𝐺 supp (𝐵 × {𝑍}))) = (𝐺 supp (𝐵 × {𝑍})))
8987, 88sylib 221 . . . . . . . . . . . . . . 15 (𝜑 → (𝐴 ∩ (𝐺 supp (𝐵 × {𝑍}))) = (𝐺 supp (𝐵 × {𝑍})))
9085, 89eqtr3id 2818 . . . . . . . . . . . . . 14 (𝜑 → (𝐴 ∖ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍})))) = (𝐺 supp (𝐵 × {𝑍})))
9190iuneq1d 4988 . . . . . . . . . . . . 13 (𝜑 𝑘 ∈ (𝐴 ∖ (𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))))((𝐺𝑘) supp 𝑍) = 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))
9284, 91eqtr3d 2806 . . . . . . . . . . . 12 (𝜑 𝑘𝐴 ((𝐺𝑘) supp 𝑍) = 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))
9392adantr 485 . . . . . . . . . . 11 ((𝜑𝑥𝐴) → 𝑘𝐴 ((𝐺𝑘) supp 𝑍) = 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))
9464, 93sseqtrd 3981 . . . . . . . . . 10 ((𝜑𝑥𝐴) → ((𝐺𝑥) supp 𝑍) ⊆ 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))
9536adantr 485 . . . . . . . . . 10 ((𝜑𝑥𝐴) → 𝑍𝐷)
9658, 94, 18, 95suppssr 8190 . . . . . . . . 9 (((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) → ((𝐺𝑥)‘𝑦) = 𝑍)
9796adantr 485 . . . . . . . 8 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → ((𝐺𝑥)‘𝑦) = 𝑍)
9856, 97eqtr3d 2806 . . . . . . 7 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → 𝐶 = 𝑍)
9948, 55, 983eqtrd 2808 . . . . . 6 ((((𝜑𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹𝑧) = 𝑍)
10099adantl3r 762 . . . . 5 (((((𝜑𝑧 ∈ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) ∧ 𝑥𝐴) ∧ 𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ∧ 𝑧 = ⟨𝑥, 𝑦⟩) → (𝐹𝑧) = 𝑍)
101 elxp2 5686 . . . . . 6 (𝑧 ∈ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) ↔ ∃𝑥𝐴𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))𝑧 = ⟨𝑥, 𝑦⟩)
102101bilani 509 . . . . 5 ((𝜑𝑧 ∈ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) → ∃𝑥𝐴𝑦 ∈ (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))𝑧 = ⟨𝑥, 𝑦⟩)
103100, 102r19.29vva 3231 . . . 4 ((𝜑𝑧 ∈ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) → (𝐹𝑧) = 𝑍)
104103adantlr 727 . . 3 (((𝜑𝑧 ∈ ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) ∧ 𝑧 ∈ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) → (𝐹𝑧) = 𝑍)
105 simpr 489 . . . . 5 ((𝜑𝑧 ∈ ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) → 𝑧 ∈ ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))))
106 difxp 6162 . . . . 5 ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))) = (((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵) ∪ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍))))
107105, 106eleqtrdi 2879 . . . 4 ((𝜑𝑧 ∈ ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) → 𝑧 ∈ (((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵) ∪ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))))
108 elun 4115 . . . 4 (𝑧 ∈ (((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵) ∪ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) ↔ (𝑧 ∈ ((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵) ∨ 𝑧 ∈ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))))
109107, 108sylib 221 . . 3 ((𝜑𝑧 ∈ ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) → (𝑧 ∈ ((𝐴 ∖ (𝐺 supp (𝐵 × {𝑍}))) × 𝐵) ∨ 𝑧 ∈ (𝐴 × (𝐵 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))))
11046, 104, 109mpjaodan 973 . 2 ((𝜑𝑧 ∈ ((𝐴 × 𝐵) ∖ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))) → (𝐹𝑧) = 𝑍)
1115, 110suppss 8189 1 (𝜑 → (𝐹 supp 𝑍) ⊆ ((𝐺 supp (𝐵 × {𝑍})) × 𝑘 ∈ (𝐺 supp (𝐵 × {𝑍}))((𝐺𝑘) supp 𝑍)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 209  wa 400  wo 860   = wceq 1567  wcel 2149  wral 3085  wrex 3095  Vcvv 3463  cdif 3910  cun 3911  cin 3912  wss 3913  c0 4294  {csn 4594  cop 4600   ciun 4960  cmpt 5196   × cxp 5660   Fn wfn 6532  wf 6533  cfv 6537  (class class class)co 7411  cmpo 7413   supp csupp 8155
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-rep 5242  ax-sep 5261  ax-nul 5271  ax-pow 5337  ax-pr 5405  ax-un 7733
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-ral 3086  df-rex 3096  df-reu 3377  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4295  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4877  df-iun 4962  df-br 5114  df-opab 5178  df-mpt 5197  df-id 5557  df-xp 5668  df-rel 5669  df-cnv 5670  df-co 5671  df-dm 5672  df-rn 5673  df-res 5674  df-ima 5675  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-ov 7414  df-oprab 7415  df-mpo 7416  df-1st 7985  df-2nd 7986  df-supp 8156
This theorem is referenced by:  fedgmullem1  33963
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