Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > fz0to3un2pr | Structured version Visualization version GIF version |
Description: An integer range from 0 to 3 is the union of two unordered pairs. (Contributed by AV, 7-Feb-2021.) |
Ref | Expression |
---|---|
fz0to3un2pr | ⊢ (0...3) = ({0, 1} ∪ {2, 3}) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1nn0 11901 | . . . 4 ⊢ 1 ∈ ℕ0 | |
2 | 3nn0 11903 | . . . 4 ⊢ 3 ∈ ℕ0 | |
3 | 1le3 11837 | . . . 4 ⊢ 1 ≤ 3 | |
4 | elfz2nn0 12986 | . . . 4 ⊢ (1 ∈ (0...3) ↔ (1 ∈ ℕ0 ∧ 3 ∈ ℕ0 ∧ 1 ≤ 3)) | |
5 | 1, 2, 3, 4 | mpbir3an 1333 | . . 3 ⊢ 1 ∈ (0...3) |
6 | fzsplit 12921 | . . 3 ⊢ (1 ∈ (0...3) → (0...3) = ((0...1) ∪ ((1 + 1)...3))) | |
7 | 5, 6 | ax-mp 5 | . 2 ⊢ (0...3) = ((0...1) ∪ ((1 + 1)...3)) |
8 | 1e0p1 12128 | . . . . 5 ⊢ 1 = (0 + 1) | |
9 | 8 | oveq2i 7156 | . . . 4 ⊢ (0...1) = (0...(0 + 1)) |
10 | 0z 11980 | . . . . 5 ⊢ 0 ∈ ℤ | |
11 | fzpr 12950 | . . . . 5 ⊢ (0 ∈ ℤ → (0...(0 + 1)) = {0, (0 + 1)}) | |
12 | 10, 11 | ax-mp 5 | . . . 4 ⊢ (0...(0 + 1)) = {0, (0 + 1)} |
13 | 0p1e1 11747 | . . . . 5 ⊢ (0 + 1) = 1 | |
14 | 13 | preq2i 4665 | . . . 4 ⊢ {0, (0 + 1)} = {0, 1} |
15 | 9, 12, 14 | 3eqtri 2845 | . . 3 ⊢ (0...1) = {0, 1} |
16 | 1p1e2 11750 | . . . . 5 ⊢ (1 + 1) = 2 | |
17 | df-3 11689 | . . . . 5 ⊢ 3 = (2 + 1) | |
18 | 16, 17 | oveq12i 7157 | . . . 4 ⊢ ((1 + 1)...3) = (2...(2 + 1)) |
19 | 2z 12002 | . . . . 5 ⊢ 2 ∈ ℤ | |
20 | fzpr 12950 | . . . . 5 ⊢ (2 ∈ ℤ → (2...(2 + 1)) = {2, (2 + 1)}) | |
21 | 19, 20 | ax-mp 5 | . . . 4 ⊢ (2...(2 + 1)) = {2, (2 + 1)} |
22 | 2p1e3 11767 | . . . . 5 ⊢ (2 + 1) = 3 | |
23 | 22 | preq2i 4665 | . . . 4 ⊢ {2, (2 + 1)} = {2, 3} |
24 | 18, 21, 23 | 3eqtri 2845 | . . 3 ⊢ ((1 + 1)...3) = {2, 3} |
25 | 15, 24 | uneq12i 4134 | . 2 ⊢ ((0...1) ∪ ((1 + 1)...3)) = ({0, 1} ∪ {2, 3}) |
26 | 7, 25 | eqtri 2841 | 1 ⊢ (0...3) = ({0, 1} ∪ {2, 3}) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1528 ∈ wcel 2105 ∪ cun 3931 {cpr 4559 class class class wbr 5057 (class class class)co 7145 0cc0 10525 1c1 10526 + caddc 10528 ≤ cle 10664 2c2 11680 3c3 11681 ℕ0cn0 11885 ℤcz 11969 ...cfz 12880 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1787 ax-4 1801 ax-5 1902 ax-6 1961 ax-7 2006 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2151 ax-12 2167 ax-ext 2790 ax-sep 5194 ax-nul 5201 ax-pow 5257 ax-pr 5320 ax-un 7450 ax-cnex 10581 ax-resscn 10582 ax-1cn 10583 ax-icn 10584 ax-addcl 10585 ax-addrcl 10586 ax-mulcl 10587 ax-mulrcl 10588 ax-mulcom 10589 ax-addass 10590 ax-mulass 10591 ax-distr 10592 ax-i2m1 10593 ax-1ne0 10594 ax-1rid 10595 ax-rnegex 10596 ax-rrecex 10597 ax-cnre 10598 ax-pre-lttri 10599 ax-pre-lttrn 10600 ax-pre-ltadd 10601 ax-pre-mulgt0 10602 |
This theorem depends on definitions: df-bi 208 df-an 397 df-or 842 df-3or 1080 df-3an 1081 df-tru 1531 df-ex 1772 df-nf 1776 df-sb 2061 df-mo 2615 df-eu 2647 df-clab 2797 df-cleq 2811 df-clel 2890 df-nfc 2960 df-ne 3014 df-nel 3121 df-ral 3140 df-rex 3141 df-reu 3142 df-rab 3144 df-v 3494 df-sbc 3770 df-csb 3881 df-dif 3936 df-un 3938 df-in 3940 df-ss 3949 df-pss 3951 df-nul 4289 df-if 4464 df-pw 4537 df-sn 4558 df-pr 4560 df-tp 4562 df-op 4564 df-uni 4831 df-iun 4912 df-br 5058 df-opab 5120 df-mpt 5138 df-tr 5164 df-id 5453 df-eprel 5458 df-po 5467 df-so 5468 df-fr 5507 df-we 5509 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-pred 6141 df-ord 6187 df-on 6188 df-lim 6189 df-suc 6190 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-riota 7103 df-ov 7148 df-oprab 7149 df-mpo 7150 df-om 7570 df-1st 7678 df-2nd 7679 df-wrecs 7936 df-recs 7997 df-rdg 8035 df-er 8278 df-en 8498 df-dom 8499 df-sdom 8500 df-pnf 10665 df-mnf 10666 df-xr 10667 df-ltxr 10668 df-le 10669 df-sub 10860 df-neg 10861 df-nn 11627 df-2 11688 df-3 11689 df-n0 11886 df-z 11970 df-uz 12232 df-fz 12881 |
This theorem is referenced by: iblcnlem1 24315 3wlkdlem4 27868 |
Copyright terms: Public domain | W3C validator |