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Mirrors > Home > MPE Home > Th. List > fzo0to42pr | Structured version Visualization version GIF version |
Description: A half-open integer range from 0 to 4 is a union of two unordered pairs. (Contributed by Alexander van der Vekens, 17-Nov-2017.) |
Ref | Expression |
---|---|
fzo0to42pr | ⊢ (0..^4) = ({0, 1} ∪ {2, 3}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2nn0 11917 | . . . 4 ⊢ 2 ∈ ℕ0 | |
2 | 4nn0 11919 | . . . 4 ⊢ 4 ∈ ℕ0 | |
3 | 2re 11714 | . . . . 5 ⊢ 2 ∈ ℝ | |
4 | 4re 11724 | . . . . 5 ⊢ 4 ∈ ℝ | |
5 | 2lt4 11815 | . . . . 5 ⊢ 2 < 4 | |
6 | 3, 4, 5 | ltleii 10765 | . . . 4 ⊢ 2 ≤ 4 |
7 | elfz2nn0 13001 | . . . 4 ⊢ (2 ∈ (0...4) ↔ (2 ∈ ℕ0 ∧ 4 ∈ ℕ0 ∧ 2 ≤ 4)) | |
8 | 1, 2, 6, 7 | mpbir3an 1337 | . . 3 ⊢ 2 ∈ (0...4) |
9 | fzosplit 13073 | . . 3 ⊢ (2 ∈ (0...4) → (0..^4) = ((0..^2) ∪ (2..^4))) | |
10 | 8, 9 | ax-mp 5 | . 2 ⊢ (0..^4) = ((0..^2) ∪ (2..^4)) |
11 | fzo0to2pr 13125 | . . 3 ⊢ (0..^2) = {0, 1} | |
12 | 4z 12019 | . . . . 5 ⊢ 4 ∈ ℤ | |
13 | fzoval 13042 | . . . . 5 ⊢ (4 ∈ ℤ → (2..^4) = (2...(4 − 1))) | |
14 | 12, 13 | ax-mp 5 | . . . 4 ⊢ (2..^4) = (2...(4 − 1)) |
15 | 4m1e3 11769 | . . . . . . 7 ⊢ (4 − 1) = 3 | |
16 | df-3 11704 | . . . . . . 7 ⊢ 3 = (2 + 1) | |
17 | 15, 16 | eqtri 2846 | . . . . . 6 ⊢ (4 − 1) = (2 + 1) |
18 | 17 | oveq2i 7169 | . . . . 5 ⊢ (2...(4 − 1)) = (2...(2 + 1)) |
19 | 2z 12017 | . . . . . 6 ⊢ 2 ∈ ℤ | |
20 | fzpr 12965 | . . . . . 6 ⊢ (2 ∈ ℤ → (2...(2 + 1)) = {2, (2 + 1)}) | |
21 | 19, 20 | ax-mp 5 | . . . . 5 ⊢ (2...(2 + 1)) = {2, (2 + 1)} |
22 | 18, 21 | eqtri 2846 | . . . 4 ⊢ (2...(4 − 1)) = {2, (2 + 1)} |
23 | 2p1e3 11782 | . . . . 5 ⊢ (2 + 1) = 3 | |
24 | 23 | preq2i 4675 | . . . 4 ⊢ {2, (2 + 1)} = {2, 3} |
25 | 14, 22, 24 | 3eqtri 2850 | . . 3 ⊢ (2..^4) = {2, 3} |
26 | 11, 25 | uneq12i 4139 | . 2 ⊢ ((0..^2) ∪ (2..^4)) = ({0, 1} ∪ {2, 3}) |
27 | 10, 26 | eqtri 2846 | 1 ⊢ (0..^4) = ({0, 1} ∪ {2, 3}) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1537 ∈ wcel 2114 ∪ cun 3936 {cpr 4571 class class class wbr 5068 (class class class)co 7158 0cc0 10539 1c1 10540 + caddc 10542 ≤ cle 10678 − cmin 10872 2c2 11695 3c3 11696 4c4 11697 ℕ0cn0 11900 ℤcz 11984 ...cfz 12895 ..^cfzo 13036 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-cnex 10595 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-addrcl 10600 ax-mulcl 10601 ax-mulrcl 10602 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-i2m1 10607 ax-1ne0 10608 ax-1rid 10609 ax-rnegex 10610 ax-rrecex 10611 ax-cnre 10612 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 ax-pre-mulgt0 10616 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-pss 3956 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-tp 4574 df-op 4576 df-uni 4841 df-iun 4923 df-br 5069 df-opab 5131 df-mpt 5149 df-tr 5175 df-id 5462 df-eprel 5467 df-po 5476 df-so 5477 df-fr 5516 df-we 5518 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-pred 6150 df-ord 6196 df-on 6197 df-lim 6198 df-suc 6199 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-om 7583 df-1st 7691 df-2nd 7692 df-wrecs 7949 df-recs 8010 df-rdg 8048 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-sub 10874 df-neg 10875 df-nn 11641 df-2 11703 df-3 11704 df-4 11705 df-n0 11901 df-z 11985 df-uz 12247 df-fz 12896 df-fzo 13037 |
This theorem is referenced by: 3pthdlem1 27945 upgr4cycl4dv4e 27966 |
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