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Theorem pcoval 24960
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 6874 . . . . . 6 (𝑓 = 𝐹 → (𝑓‘(2 · 𝑥)) = (𝐹‘(2 · 𝑥)))
43adantr 480 . . . . 5 ((𝑓 = 𝐹𝑔 = 𝐺) → (𝑓‘(2 · 𝑥)) = (𝐹‘(2 · 𝑥)))
5 fveq1 6874 . . . . . 6 (𝑔 = 𝐺 → (𝑔‘((2 · 𝑥) − 1)) = (𝐺‘((2 · 𝑥) − 1)))
65adantl 481 . . . . 5 ((𝑓 = 𝐹𝑔 = 𝐺) → (𝑔‘((2 · 𝑥) − 1)) = (𝐺‘((2 · 𝑥) − 1)))
74, 6ifeq12d 4522 . . . 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 5215 . . 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 24959 . . 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 7436 . . . 4 (0[,]1) ∈ V
1110mptex 7214 . . 3 (𝑥 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), (𝐹‘(2 · 𝑥)), (𝐺‘((2 · 𝑥) − 1)))) ∈ V
128, 9, 11ovmpoa 7560 . 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 584 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 395   = wceq 1540  wcel 2108  ifcif 4500   class class class wbr 5119  cmpt 5201  cfv 6530  (class class class)co 7403  0cc0 11127  1c1 11128   · cmul 11132  cle 11268  cmin 11464   / cdiv 11892  2c2 12293  [,]cicc 13363   Cn ccn 23160  IIcii 24817  *𝑝cpco 24949
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2707  ax-rep 5249  ax-sep 5266  ax-nul 5276  ax-pow 5335  ax-pr 5402  ax-un 7727
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2065  df-mo 2539  df-eu 2568  df-clab 2714  df-cleq 2727  df-clel 2809  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3061  df-reu 3360  df-rab 3416  df-v 3461  df-sbc 3766  df-csb 3875  df-dif 3929  df-un 3931  df-in 3933  df-ss 3943  df-nul 4309  df-if 4501  df-pw 4577  df-sn 4602  df-pr 4604  df-op 4608  df-uni 4884  df-iun 4969  df-br 5120  df-opab 5182  df-mpt 5202  df-id 5548  df-xp 5660  df-rel 5661  df-cnv 5662  df-co 5663  df-dm 5664  df-rn 5665  df-res 5666  df-ima 5667  df-iota 6483  df-fun 6532  df-fn 6533  df-f 6534  df-f1 6535  df-fo 6536  df-f1o 6537  df-fv 6538  df-ov 7406  df-oprab 7407  df-mpo 7408  df-1st 7986  df-2nd 7987  df-map 8840  df-top 22830  df-topon 22847  df-cn 23163  df-pco 24954
This theorem is referenced by:  pcovalg  24961  pco1  24964  pcocn  24966  copco  24967  pcopt  24971  pcopt2  24972  pcoass  24973
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