| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > pcoval1 | Structured version Visualization version GIF version | ||
| Description: Evaluate the concatenation of two paths on the first half. (Contributed by Jeff Madsen, 15-Jun-2010.) (Revised by Mario Carneiro, 7-Jun-2014.) |
| Ref | Expression |
|---|---|
| pcoval.2 | ⊢ (𝜑 → 𝐹 ∈ (II Cn 𝐽)) |
| pcoval.3 | ⊢ (𝜑 → 𝐺 ∈ (II Cn 𝐽)) |
| Ref | Expression |
|---|---|
| pcoval1 | ⊢ ((𝜑 ∧ 𝑋 ∈ (0[,](1 / 2))) → ((𝐹(*𝑝‘𝐽)𝐺)‘𝑋) = (𝐹‘(2 · 𝑋))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re 11146 | . . . . 5 ⊢ 0 ∈ ℝ | |
| 2 | 1re 11144 | . . . . 5 ⊢ 1 ∈ ℝ | |
| 3 | 0le0 12282 | . . . . 5 ⊢ 0 ≤ 0 | |
| 4 | halfre 12390 | . . . . . 6 ⊢ (1 / 2) ∈ ℝ | |
| 5 | halflt1 12394 | . . . . . 6 ⊢ (1 / 2) < 1 | |
| 6 | 4, 2, 5 | ltleii 11269 | . . . . 5 ⊢ (1 / 2) ≤ 1 |
| 7 | iccss 13367 | . . . . 5 ⊢ (((0 ∈ ℝ ∧ 1 ∈ ℝ) ∧ (0 ≤ 0 ∧ (1 / 2) ≤ 1)) → (0[,](1 / 2)) ⊆ (0[,]1)) | |
| 8 | 1, 2, 3, 6, 7 | mp4an 694 | . . . 4 ⊢ (0[,](1 / 2)) ⊆ (0[,]1) |
| 9 | 8 | sseli 3917 | . . 3 ⊢ (𝑋 ∈ (0[,](1 / 2)) → 𝑋 ∈ (0[,]1)) |
| 10 | pcoval.2 | . . . 4 ⊢ (𝜑 → 𝐹 ∈ (II Cn 𝐽)) | |
| 11 | pcoval.3 | . . . 4 ⊢ (𝜑 → 𝐺 ∈ (II Cn 𝐽)) | |
| 12 | 10, 11 | pcovalg 24979 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ (0[,]1)) → ((𝐹(*𝑝‘𝐽)𝐺)‘𝑋) = if(𝑋 ≤ (1 / 2), (𝐹‘(2 · 𝑋)), (𝐺‘((2 · 𝑋) − 1)))) |
| 13 | 9, 12 | sylan2 594 | . 2 ⊢ ((𝜑 ∧ 𝑋 ∈ (0[,](1 / 2))) → ((𝐹(*𝑝‘𝐽)𝐺)‘𝑋) = if(𝑋 ≤ (1 / 2), (𝐹‘(2 · 𝑋)), (𝐺‘((2 · 𝑋) − 1)))) |
| 14 | elii1 24902 | . . . . 5 ⊢ (𝑋 ∈ (0[,](1 / 2)) ↔ (𝑋 ∈ (0[,]1) ∧ 𝑋 ≤ (1 / 2))) | |
| 15 | 14 | simprbi 497 | . . . 4 ⊢ (𝑋 ∈ (0[,](1 / 2)) → 𝑋 ≤ (1 / 2)) |
| 16 | 15 | iftrued 4474 | . . 3 ⊢ (𝑋 ∈ (0[,](1 / 2)) → if(𝑋 ≤ (1 / 2), (𝐹‘(2 · 𝑋)), (𝐺‘((2 · 𝑋) − 1))) = (𝐹‘(2 · 𝑋))) |
| 17 | 16 | adantl 481 | . 2 ⊢ ((𝜑 ∧ 𝑋 ∈ (0[,](1 / 2))) → if(𝑋 ≤ (1 / 2), (𝐹‘(2 · 𝑋)), (𝐺‘((2 · 𝑋) − 1))) = (𝐹‘(2 · 𝑋))) |
| 18 | 13, 17 | eqtrd 2771 | 1 ⊢ ((𝜑 ∧ 𝑋 ∈ (0[,](1 / 2))) → ((𝐹(*𝑝‘𝐽)𝐺)‘𝑋) = (𝐹‘(2 · 𝑋))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ⊆ wss 3889 ifcif 4466 class class class wbr 5085 ‘cfv 6498 (class class class)co 7367 ℝcr 11037 0cc0 11038 1c1 11039 · cmul 11043 ≤ cle 11180 − cmin 11377 / cdiv 11807 2c2 12236 [,]cicc 13301 Cn ccn 23189 IIcii 24842 *𝑝cpco 24967 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2708 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-cnex 11094 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 ax-pre-mulgt0 11115 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-rmo 3342 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-pss 3909 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-iun 4935 df-br 5086 df-opab 5148 df-mpt 5167 df-tr 5193 df-id 5526 df-eprel 5531 df-po 5539 df-so 5540 df-fr 5584 df-we 5586 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6265 df-ord 6326 df-on 6327 df-lim 6328 df-suc 6329 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-om 7818 df-1st 7942 df-2nd 7943 df-frecs 8231 df-wrecs 8262 df-recs 8311 df-rdg 8349 df-er 8643 df-map 8775 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-xr 11183 df-ltxr 11184 df-le 11185 df-sub 11379 df-neg 11380 df-div 11808 df-nn 12175 df-2 12244 df-icc 13305 df-top 22859 df-topon 22876 df-cn 23192 df-pco 24972 |
| This theorem is referenced by: pco0 24981 pcoass 24991 pcorevlem 24993 |
| Copyright terms: Public domain | W3C validator |