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Theorem imasubclem2 50212
Description: Lemma for imasubc 50258. (Contributed by Zhi Wang, 7-Nov-2025.)
Hypotheses
Ref Expression
imasubclem1.f (𝜑 → 𝐹 ∈ 𝑉)
imasubclem1.g (𝜑 → 𝐺 ∈ 𝑊)
imasubclem2.k 𝐾 = (𝑦 ∈ 𝑋, 𝑧 ∈ 𝑌 ↦ ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷))
Assertion
Ref Expression
imasubclem2 (𝜑 → 𝐾 Fn (𝑋 × 𝑌))
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐹   𝑥,𝐺   𝑦,𝑋,𝑧   𝑦,𝑌,𝑧   𝜑,𝑦,𝑧
Allowed substitution hints:   𝜑(𝑥)   𝐴(𝑦, 𝑧)   𝐵(𝑦, 𝑧)   𝐶(𝑥, 𝑦, 𝑧)   𝐷(𝑥, 𝑦, 𝑧)   𝐹(𝑦, 𝑧)   𝐺(𝑦, 𝑧)   𝐻(𝑥, 𝑦, 𝑧)   𝐾(𝑥, 𝑦, 𝑧)   𝑉(𝑥, 𝑦, 𝑧)   𝑊(𝑥, 𝑦, 𝑧)   𝑋(𝑥)   𝑌(𝑥)

Proof of Theorem imasubclem2
StepHypRef Expression
1 imasubclem1.f . . . . 5 (𝜑 → 𝐹 ∈ 𝑉)
2 imasubclem1.g . . . . 5 (𝜑 → 𝐺 ∈ 𝑊)
31, 2imasubclem1 50211 . . . 4 (𝜑 → ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V)
43adantr 486 . . 3 ((𝜑 ∧ (𝑦 ∈ 𝑋 ∧ 𝑧 ∈ 𝑌)) → ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V)
54ralrimivva 3206 . 2 (𝜑 → ∀𝑦 ∈ 𝑋 ∀𝑧 ∈ 𝑌 ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V)
6 imasubclem2.k . . 3 𝐾 = (𝑦 ∈ 𝑋, 𝑧 ∈ 𝑌 ↦ ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷))
76fnmpo 8080 . 2 (∀𝑦 ∈ 𝑋 ∀𝑧 ∈ 𝑌 ∪ 𝑥 ∈ ((◡𝐹 “ 𝐴) × (◡𝐺 “ 𝐵))((𝐻‘𝐶) “ 𝐷) ∈ V → 𝐾 Fn (𝑋 × 𝑌))
85, 7syl 18 1 (𝜑 → 𝐾 Fn (𝑋 × 𝑌))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ∧ wa 401   = wceq 1570   ∈ wcel 2145  ∀wral 3077  Vcvv 3451  ∪ ciun 4951   × cxp 5649  ◡ccnv 5650   “ cima 5654   Fn wfn 6533  ‘cfv 6538   ∈ cmpo 7422
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pow 5327  ax-pr 5391  ax-un 7751
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-rab 3414  df-v 3453  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-iun 4953  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-iota 6494  df-fun 6540  df-fn 6541  df-f 6542  df-fv 6546  df-oprab 7424  df-mpo 7425  df-1st 8001  df-2nd 8002
This theorem is used by:  imaidfu  50217  imasubc  50258  imassc  50260  imasubc3  50263
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