![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > nn0le2xi | GIF version |
Description: A nonnegative integer is less than or equal to twice itself. (Contributed by Raph Levien, 10-Dec-2002.) |
Ref | Expression |
---|---|
nn0le2x.1 | ⊢ 𝑁 ∈ ℕ0 |
Ref | Expression |
---|---|
nn0le2xi | ⊢ 𝑁 ≤ (2 · 𝑁) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nn0le2x.1 | . . . 4 ⊢ 𝑁 ∈ ℕ0 | |
2 | 1 | nn0rei 8747 | . . 3 ⊢ 𝑁 ∈ ℝ |
3 | 2, 1 | nn0addge1i 8784 | . 2 ⊢ 𝑁 ≤ (𝑁 + 𝑁) |
4 | 1 | nn0cni 8748 | . . 3 ⊢ 𝑁 ∈ ℂ |
5 | 4 | 2timesi 8609 | . 2 ⊢ (2 · 𝑁) = (𝑁 + 𝑁) |
6 | 3, 5 | breqtrri 3878 | 1 ⊢ 𝑁 ≤ (2 · 𝑁) |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1439 class class class wbr 3853 (class class class)co 5668 + caddc 7416 · cmul 7418 ≤ cle 7586 2c2 8536 ℕ0cn0 8736 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 580 ax-in2 581 ax-io 666 ax-5 1382 ax-7 1383 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-8 1441 ax-10 1442 ax-11 1443 ax-i12 1444 ax-bndl 1445 ax-4 1446 ax-13 1450 ax-14 1451 ax-17 1465 ax-i9 1469 ax-ial 1473 ax-i5r 1474 ax-ext 2071 ax-sep 3965 ax-pow 4017 ax-pr 4047 ax-un 4271 ax-setind 4368 ax-cnex 7499 ax-resscn 7500 ax-1cn 7501 ax-1re 7502 ax-icn 7503 ax-addcl 7504 ax-addrcl 7505 ax-mulcl 7506 ax-addcom 7508 ax-mulcom 7509 ax-addass 7510 ax-mulass 7511 ax-distr 7512 ax-i2m1 7513 ax-0lt1 7514 ax-1rid 7515 ax-0id 7516 ax-rnegex 7517 ax-cnre 7519 ax-pre-ltirr 7520 ax-pre-ltwlin 7521 ax-pre-lttrn 7522 ax-pre-ltadd 7524 |
This theorem depends on definitions: df-bi 116 df-3an 927 df-tru 1293 df-fal 1296 df-nf 1396 df-sb 1694 df-eu 1952 df-mo 1953 df-clab 2076 df-cleq 2082 df-clel 2085 df-nfc 2218 df-ne 2257 df-nel 2352 df-ral 2365 df-rex 2366 df-rab 2369 df-v 2624 df-dif 3004 df-un 3006 df-in 3008 df-ss 3015 df-pw 3437 df-sn 3458 df-pr 3459 df-op 3461 df-uni 3662 df-int 3697 df-br 3854 df-opab 3908 df-xp 4460 df-cnv 4462 df-iota 4995 df-fv 5038 df-ov 5671 df-pnf 7587 df-mnf 7588 df-xr 7589 df-ltxr 7590 df-le 7591 df-inn 8486 df-2 8544 df-n0 8737 |
This theorem is referenced by: nn0lele2xi 8787 |
Copyright terms: Public domain | W3C validator |