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Theorem pcoval 25000
Description: The concatenation of two paths. (Contributed by Jeff Madsen, 15-Jun-2010.) (Revised by Mario Carneiro, 23-Aug-2014.)
Hypotheses
Ref Expression
pcoval.2 (𝜑𝐹 ∈ (II Cn 𝐽))
pcoval.3 (𝜑𝐺 ∈ (II Cn 𝐽))
Assertion
Ref Expression
pcoval (𝜑 → (𝐹(*𝑝𝐽)𝐺) = (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝐹‘(2 · 𝑥)), (𝐺‘((2 · 𝑥) − 1)))))
Distinct variable groups:   𝑥,𝐹   𝑥,𝐺   𝜑,𝑥   𝑥,𝐽

Proof of Theorem pcoval
Dummy variables 𝑓 𝑔 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 pcoval.2 . 2 (𝜑𝐹 ∈ (II Cn 𝐽))
2 pcoval.3 . 2 (𝜑𝐺 ∈ (II Cn 𝐽))
3 fveq1 6830 . . . . . 6 (𝑓 = 𝐹 → (𝑓‘(2 · 𝑥)) = (𝐹‘(2 · 𝑥)))
43adantr 482 . . . . 5 ((𝑓 = 𝐹𝑔 = 𝐺) → (𝑓‘(2 · 𝑥)) = (𝐹‘(2 · 𝑥)))
5 fveq1 6830 . . . . . 6 (𝑔 = 𝐺 → (𝑔‘((2 · 𝑥) − 1)) = (𝐺‘((2 · 𝑥) − 1)))
65adantl 483 . . . . 5 ((𝑓 = 𝐹𝑔 = 𝐺) → (𝑔‘((2 · 𝑥) − 1)) = (𝐺‘((2 · 𝑥) − 1)))
74, 6ifeq12d 4479 . . . 4 ((𝑓 = 𝐹𝑔 = 𝐺) → if(𝑥 ≤ (1 / 2), (𝑓‘(2 · 𝑥)), (𝑔‘((2 · 𝑥) − 1))) = if(𝑥 ≤ (1 / 2), (𝐹‘(2 · 𝑥)), (𝐺‘((2 · 𝑥) − 1))))
87mpteq2dv 5169 . . 3 ((𝑓 = 𝐹𝑔 = 𝐺) → (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝑓‘(2 · 𝑥)), (𝑔‘((2 · 𝑥) − 1)))) = (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝐹‘(2 · 𝑥)), (𝐺‘((2 · 𝑥) − 1)))))
9 pcofval 24999 . . 3 (*𝑝𝐽) = (𝑓 ∈ (II Cn 𝐽), 𝑔 ∈ (II Cn 𝐽) ↦ (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝑓‘(2 · 𝑥)), (𝑔‘((2 · 𝑥) − 1)))))
10 ovex 7393 . . . 4 (0[,]1) ∈ V
1110mptex 7171 . . 3 (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝐹‘(2 · 𝑥)), (𝐺‘((2 · 𝑥) − 1)))) ∈ V
128, 9, 11ovmpoa 7515 . 2 ((𝐹 ∈ (II Cn 𝐽) ∧ 𝐺 ∈ (II Cn 𝐽)) → (𝐹(*𝑝𝐽)𝐺) = (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝐹‘(2 · 𝑥)), (𝐺‘((2 · 𝑥) − 1)))))
131, 2, 12syl2anc 591 1 (𝜑 → (𝐹(*𝑝𝐽)𝐺) = (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝐹‘(2 · 𝑥)), (𝐺‘((2 · 𝑥) − 1)))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 397   = wceq 1548  wcel 2121  ifcif 4457   class class class wbr 5075  cmpt 5156  cfv 6489  (class class class)co 7360  0cc0 11033  1c1 11034   · cmul 11038  cle 11175  cmin 11372   / cdiv 11802  2c2 12231  [,]cicc 13296   Cn ccn 23211  IIcii 24864  *𝑝cpco 24989
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1803  ax-4 1817  ax-5 1918  ax-6 1975  ax-7 2016  ax-8 2123  ax-9 2131  ax-10 2154  ax-11 2170  ax-12 2191  ax-ext 2713  ax-rep 5202  ax-sep 5221  ax-nul 5231  ax-pow 5297  ax-pr 5365  ax-un 7682
This theorem depends on definitions:  df-bi 209  df-an 398  df-or 855  df-3an 1095  df-tru 1551  df-fal 1561  df-ex 1788  df-nf 1792  df-sb 2075  df-mo 2545  df-eu 2575  df-clab 2720  df-cleq 2733  df-clel 2816  df-nfc 2890  df-ne 2937  df-ral 3056  df-rex 3066  df-reu 3347  df-rab 3394  df-v 3435  df-sbc 3726  df-csb 3834  df-dif 3888  df-un 3890  df-in 3892  df-ss 3902  df-nul 4265  df-if 4458  df-pw 4534  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4842  df-iun 4926  df-br 5076  df-opab 5138  df-mpt 5157  df-id 5516  df-xp 5627  df-rel 5628  df-cnv 5629  df-co 5630  df-dm 5631  df-rn 5632  df-res 5633  df-ima 5634  df-iota 6445  df-fun 6491  df-fn 6492  df-f 6493  df-f1 6494  df-fo 6495  df-f1o 6496  df-fv 6497  df-ov 7363  df-oprab 7364  df-mpo 7365  df-1st 7935  df-2nd 7936  df-map 8769  df-top 22881  df-topon 22898  df-cn 23214  df-pco 24994
This theorem is referenced by:  pcovalg  25001  pco1  25004  pcocn  25006  copco  25007  pcopt  25011  pcopt2  25012  pcoass  25013
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