| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 12449 | . . . 4 ⊢ 2 ∈ ℕ0 | |
| 2 | 4nn0 12451 | . . . 4 ⊢ 4 ∈ ℕ0 | |
| 3 | 2re 12250 | . . . . 5 ⊢ 2 ∈ ℝ | |
| 4 | 4re 12260 | . . . . 5 ⊢ 4 ∈ ℝ | |
| 5 | 2lt4 12346 | . . . . 5 ⊢ 2 < 4 | |
| 6 | 3, 4, 5 | ltleii 11264 | . . . 4 ⊢ 2 ≤ 4 |
| 7 | elfz2nn0 13567 | . . . 4 ⊢ (2 ∈ (0...4) ↔ (2 ∈ ℕ0 ∧ 4 ∈ ℕ0 ∧ 2 ≤ 4)) | |
| 8 | 1, 2, 6, 7 | mpbir3an 1343 | . . 3 ⊢ 2 ∈ (0...4) |
| 9 | fzosplit 13642 | . . 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 13700 | . . 3 ⊢ (0..^2) = {0, 1} | |
| 12 | 4z 12556 | . . . . 5 ⊢ 4 ∈ ℤ | |
| 13 | fzoval 13609 | . . . . 5 ⊢ (4 ∈ ℤ → (2..^4) = (2...(4 − 1))) | |
| 14 | 12, 13 | ax-mp 5 | . . . 4 ⊢ (2..^4) = (2...(4 − 1)) |
| 15 | 4m1e3 12300 | . . . . . . 7 ⊢ (4 − 1) = 3 | |
| 16 | df-3 12240 | . . . . . . 7 ⊢ 3 = (2 + 1) | |
| 17 | 15, 16 | eqtri 2760 | . . . . . 6 ⊢ (4 − 1) = (2 + 1) |
| 18 | 17 | oveq2i 7373 | . . . . 5 ⊢ (2...(4 − 1)) = (2...(2 + 1)) |
| 19 | 2z 12554 | . . . . . 6 ⊢ 2 ∈ ℤ | |
| 20 | fzpr 13528 | . . . . . 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 2760 | . . . 4 ⊢ (2...(4 − 1)) = {2, (2 + 1)} |
| 23 | 2p1e3 12313 | . . . . 5 ⊢ (2 + 1) = 3 | |
| 24 | 23 | preq2i 4682 | . . . 4 ⊢ {2, (2 + 1)} = {2, 3} |
| 25 | 14, 22, 24 | 3eqtri 2764 | . . 3 ⊢ (2..^4) = {2, 3} |
| 26 | 11, 25 | uneq12i 4107 | . 2 ⊢ ((0..^2) ∪ (2..^4)) = ({0, 1} ∪ {2, 3}) |
| 27 | 10, 26 | eqtri 2760 | 1 ⊢ (0..^4) = ({0, 1} ∪ {2, 3}) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 ∪ cun 3888 {cpr 4570 class class class wbr 5086 (class class class)co 7362 0cc0 11033 1c1 11034 + caddc 11036 ≤ cle 11175 − cmin 11372 2c2 12231 3c3 12232 4c4 12233 ℕ0cn0 12432 ℤcz 12519 ...cfz 13456 ..^cfzo 13603 |
| 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 2709 ax-sep 5232 ax-nul 5242 ax-pow 5304 ax-pr 5372 ax-un 7684 ax-cnex 11089 ax-resscn 11090 ax-1cn 11091 ax-icn 11092 ax-addcl 11093 ax-addrcl 11094 ax-mulcl 11095 ax-mulrcl 11096 ax-mulcom 11097 ax-addass 11098 ax-mulass 11099 ax-distr 11100 ax-i2m1 11101 ax-1ne0 11102 ax-1rid 11103 ax-rnegex 11104 ax-rrecex 11105 ax-cnre 11106 ax-pre-lttri 11107 ax-pre-lttrn 11108 ax-pre-ltadd 11109 ax-pre-mulgt0 11110 |
| 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 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5521 df-eprel 5526 df-po 5534 df-so 5535 df-fr 5579 df-we 5581 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-res 5638 df-ima 5639 df-pred 6261 df-ord 6322 df-on 6323 df-lim 6324 df-suc 6325 df-iota 6450 df-fun 6496 df-fn 6497 df-f 6498 df-f1 6499 df-fo 6500 df-f1o 6501 df-fv 6502 df-riota 7319 df-ov 7365 df-oprab 7366 df-mpo 7367 df-om 7813 df-1st 7937 df-2nd 7938 df-frecs 8226 df-wrecs 8257 df-recs 8306 df-rdg 8344 df-er 8638 df-en 8889 df-dom 8890 df-sdom 8891 df-pnf 11176 df-mnf 11177 df-xr 11178 df-ltxr 11179 df-le 11180 df-sub 11374 df-neg 11375 df-nn 12170 df-2 12239 df-3 12240 df-4 12241 df-n0 12433 df-z 12520 df-uz 12784 df-fz 13457 df-fzo 13604 |
| This theorem is referenced by: 3pthdlem1 30253 upgr4cycl4dv4e 30274 evl1deg3 33657 gpgprismgr4cycllem3 48589 gpgprismgr4cycllem7 48593 gpgprismgr4cycllem10 48596 |
| Copyright terms: Public domain | W3C validator |