Users' Mathboxes Mathbox for Zhi Wang < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  functhinclem3 Structured version   Visualization version   GIF version

Theorem functhinclem3 48843
Description: Lemma for functhinc 48845. The mapped morphism is in its corresponding hom-set. (Contributed by Zhi Wang, 1-Oct-2024.)
Hypotheses
Ref Expression
functhinclem3.x (𝜑𝑋𝐵)
functhinclem3.y (𝜑𝑌𝐵)
functhinclem3.m (𝜑𝑀 ∈ (𝑋𝐻𝑌))
functhinclem3.g (𝜑𝐺 = (𝑥𝐵, 𝑦𝐵 ↦ ((𝑥𝐻𝑦) × ((𝐹𝑥)𝐽(𝐹𝑦)))))
functhinclem3.1 (𝜑 → (((𝐹𝑋)𝐽(𝐹𝑌)) = ∅ → (𝑋𝐻𝑌) = ∅))
functhinclem3.2 (𝜑 → ∃*𝑛 𝑛 ∈ ((𝐹𝑋)𝐽(𝐹𝑌)))
Assertion
Ref Expression
functhinclem3 (𝜑 → ((𝑋𝐺𝑌)‘𝑀) ∈ ((𝐹𝑋)𝐽(𝐹𝑌)))
Distinct variable groups:   𝑛,𝐹   𝑥,𝐹,𝑦   𝑥,𝐻,𝑦   𝑛,𝐽   𝑥,𝐽,𝑦   𝑛,𝑋   𝑥,𝑋,𝑦   𝑛,𝑌   𝑥,𝑌,𝑦   𝜑,𝑥,𝑦
Allowed substitution hints:   𝜑(𝑛)   𝐵(𝑥,𝑦,𝑛)   𝐺(𝑥,𝑦,𝑛)   𝐻(𝑛)   𝑀(𝑥,𝑦,𝑛)

Proof of Theorem functhinclem3
StepHypRef Expression
1 functhinclem3.g . . . 4 (𝜑𝐺 = (𝑥𝐵, 𝑦𝐵 ↦ ((𝑥𝐻𝑦) × ((𝐹𝑥)𝐽(𝐹𝑦)))))
2 simprl 771 . . . . . 6 ((𝜑 ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → 𝑥 = 𝑋)
3 simprr 773 . . . . . 6 ((𝜑 ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → 𝑦 = 𝑌)
42, 3oveq12d 7449 . . . . 5 ((𝜑 ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → (𝑥𝐻𝑦) = (𝑋𝐻𝑌))
52fveq2d 6911 . . . . . 6 ((𝜑 ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → (𝐹𝑥) = (𝐹𝑋))
63fveq2d 6911 . . . . . 6 ((𝜑 ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → (𝐹𝑦) = (𝐹𝑌))
75, 6oveq12d 7449 . . . . 5 ((𝜑 ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → ((𝐹𝑥)𝐽(𝐹𝑦)) = ((𝐹𝑋)𝐽(𝐹𝑌)))
84, 7xpeq12d 5720 . . . 4 ((𝜑 ∧ (𝑥 = 𝑋𝑦 = 𝑌)) → ((𝑥𝐻𝑦) × ((𝐹𝑥)𝐽(𝐹𝑦))) = ((𝑋𝐻𝑌) × ((𝐹𝑋)𝐽(𝐹𝑌))))
9 functhinclem3.x . . . 4 (𝜑𝑋𝐵)
10 functhinclem3.y . . . 4 (𝜑𝑌𝐵)
11 ovex 7464 . . . . . 6 (𝑋𝐻𝑌) ∈ V
12 ovex 7464 . . . . . 6 ((𝐹𝑋)𝐽(𝐹𝑌)) ∈ V
1311, 12xpex 7772 . . . . 5 ((𝑋𝐻𝑌) × ((𝐹𝑋)𝐽(𝐹𝑌))) ∈ V
1413a1i 11 . . . 4 (𝜑 → ((𝑋𝐻𝑌) × ((𝐹𝑋)𝐽(𝐹𝑌))) ∈ V)
151, 8, 9, 10, 14ovmpod 7585 . . 3 (𝜑 → (𝑋𝐺𝑌) = ((𝑋𝐻𝑌) × ((𝐹𝑋)𝐽(𝐹𝑌))))
16 eqid 2735 . . . 4 ((𝑋𝐻𝑌) × ((𝐹𝑋)𝐽(𝐹𝑌))) = ((𝑋𝐻𝑌) × ((𝐹𝑋)𝐽(𝐹𝑌)))
17 functhinclem3.1 . . . 4 (𝜑 → (((𝐹𝑋)𝐽(𝐹𝑌)) = ∅ → (𝑋𝐻𝑌) = ∅))
18 functhinclem3.2 . . . 4 (𝜑 → ∃*𝑛 𝑛 ∈ ((𝐹𝑋)𝐽(𝐹𝑌)))
1916, 17, 18mofeu 48678 . . 3 (𝜑 → ((𝑋𝐺𝑌):(𝑋𝐻𝑌)⟶((𝐹𝑋)𝐽(𝐹𝑌)) ↔ (𝑋𝐺𝑌) = ((𝑋𝐻𝑌) × ((𝐹𝑋)𝐽(𝐹𝑌)))))
2015, 19mpbird 257 . 2 (𝜑 → (𝑋𝐺𝑌):(𝑋𝐻𝑌)⟶((𝐹𝑋)𝐽(𝐹𝑌)))
21 functhinclem3.m . 2 (𝜑𝑀 ∈ (𝑋𝐻𝑌))
2220, 21ffvelcdmd 7105 1 (𝜑 → ((𝑋𝐺𝑌)‘𝑀) ∈ ((𝐹𝑋)𝐽(𝐹𝑌)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1537  wcel 2106  ∃*wmo 2536  Vcvv 3478  c0 4339   × cxp 5687  wf 6559  cfv 6563  (class class class)co 7431  cmpo 7433
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1908  ax-6 1965  ax-7 2005  ax-8 2108  ax-9 2116  ax-10 2139  ax-11 2155  ax-12 2175  ax-ext 2706  ax-sep 5302  ax-nul 5312  ax-pow 5371  ax-pr 5438  ax-un 7754
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1540  df-fal 1550  df-ex 1777  df-nf 1781  df-sb 2063  df-mo 2538  df-eu 2567  df-clab 2713  df-cleq 2727  df-clel 2814  df-nfc 2890  df-ne 2939  df-ral 3060  df-rex 3069  df-rmo 3378  df-reu 3379  df-rab 3434  df-v 3480  df-sbc 3792  df-csb 3909  df-dif 3966  df-un 3968  df-in 3970  df-ss 3980  df-nul 4340  df-if 4532  df-pw 4607  df-sn 4632  df-pr 4634  df-op 4638  df-uni 4913  df-br 5149  df-opab 5211  df-mpt 5232  df-id 5583  df-xp 5695  df-rel 5696  df-cnv 5697  df-co 5698  df-dm 5699  df-rn 5700  df-res 5701  df-ima 5702  df-iota 6516  df-fun 6565  df-fn 6566  df-f 6567  df-fv 6571  df-ov 7434  df-oprab 7435  df-mpo 7436
This theorem is referenced by:  functhinclem4  48844
  Copyright terms: Public domain W3C validator