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| Mirrors > Home > ILE Home > Th. List > n2dvds3 | GIF version | ||
| Description: 2 does not divide 3, i.e. 3 is an odd number. (Contributed by AV, 28-Feb-2021.) |
| Ref | Expression |
|---|---|
| n2dvds3 | ⊢ ¬ 2 ∥ 3 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2z 9655 | . . . 4 ⊢ 2 ∈ ℤ | |
| 2 | iddvds 12554 | . . . 4 ⊢ (2 ∈ ℤ → 2 ∥ 2) | |
| 3 | 1, 2 | ax-mp 5 | . . 3 ⊢ 2 ∥ 2 |
| 4 | 3m1e2 9407 | . . 3 ⊢ (3 − 1) = 2 | |
| 5 | 3, 4 | breqtrri 4155 | . 2 ⊢ 2 ∥ (3 − 1) |
| 6 | 3z 9656 | . . 3 ⊢ 3 ∈ ℤ | |
| 7 | oddm1even 12625 | . . 3 ⊢ (3 ∈ ℤ → (¬ 2 ∥ 3 ↔ 2 ∥ (3 − 1))) | |
| 8 | 6, 7 | ax-mp 5 | . 2 ⊢ (¬ 2 ∥ 3 ↔ 2 ∥ (3 − 1)) |
| 9 | 5, 8 | mpbir 146 | 1 ⊢ ¬ 2 ∥ 3 |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 ↔ wb 105 ∈ wcel 2209 class class class wbr 4128 (class class class)co 6079 1c1 8174 − cmin 8491 2c2 9338 3c3 9339 ℤcz 9627 ∥ cdvds 12537 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 ax-un 4576 ax-setind 4682 ax-cnex 8264 ax-resscn 8265 ax-1cn 8266 ax-1re 8267 ax-icn 8268 ax-addcl 8269 ax-addrcl 8270 ax-mulcl 8271 ax-mulrcl 8272 ax-addcom 8273 ax-mulcom 8274 ax-addass 8275 ax-mulass 8276 ax-distr 8277 ax-i2m1 8278 ax-0lt1 8279 ax-1rid 8280 ax-0id 8281 ax-rnegex 8282 ax-precex 8283 ax-cnre 8284 ax-pre-ltirr 8285 ax-pre-ltwlin 8286 ax-pre-lttrn 8287 ax-pre-apti 8288 ax-pre-ltadd 8289 ax-pre-mulgt0 8290 ax-pre-mulext 8291 |
| This theorem depends on definitions: df-bi 117 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-xor 1425 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-int 3969 df-br 4129 df-opab 4191 df-id 4436 df-po 4439 df-iso 4440 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-iota 5335 df-fun 5377 df-fv 5383 df-riota 6032 df-ov 6082 df-oprab 6083 df-mpo 6084 df-pnf 8356 df-mnf 8357 df-xr 8358 df-ltxr 8359 df-le 8360 df-sub 8493 df-neg 8494 df-reap 8897 df-ap 8904 df-div 8997 df-inn 9288 df-2 9346 df-3 9347 df-n0 9547 df-z 9628 df-dvds 12538 |
| This theorem is referenced by: 2lgsoddprmlem3 16213 konigsberglem4 16715 |
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