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Mirrors > Home > ILE Home > Th. List > 2nn0 | GIF version |
Description: 2 is a nonnegative integer. (Contributed by Raph Levien, 10-Dec-2002.) |
Ref | Expression |
---|---|
2nn0 | ⊢ 2 ∈ ℕ0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2nn 8905 | . 2 ⊢ 2 ∈ ℕ | |
2 | 1 | nnnn0i 9009 | 1 ⊢ 2 ∈ ℕ0 |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 1481 2c2 8795 ℕ0cn0 9001 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 ax-sep 4054 ax-cnex 7735 ax-resscn 7736 ax-1re 7738 ax-addrcl 7741 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-ral 2422 df-rex 2423 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-sn 3538 df-pr 3539 df-op 3541 df-uni 3745 df-int 3780 df-br 3938 df-iota 5096 df-fv 5139 df-ov 5785 df-inn 8745 df-2 8803 df-n0 9002 |
This theorem is referenced by: nn0n0n1ge2 9145 7p6e13 9283 8p3e11 9286 8p5e13 9288 9p3e12 9293 9p4e13 9294 4t3e12 9303 4t4e16 9304 5t3e15 9306 5t5e25 9308 6t3e18 9310 6t5e30 9312 7t3e21 9315 7t4e28 9316 7t5e35 9317 7t6e42 9318 7t7e49 9319 8t3e24 9321 8t4e32 9322 8t5e40 9323 9t3e27 9328 9t4e36 9329 9t8e72 9333 9t9e81 9334 decbin3 9347 2eluzge0 9397 nn01to3 9436 xnn0le2is012 9679 fzo0to42pr 10028 nn0sqcl 10351 sqmul 10386 resqcl 10391 zsqcl 10394 cu2 10422 i3 10425 i4 10426 binom3 10440 nn0opthlem1d 10498 fac3 10510 faclbnd2 10520 abssq 10885 sqabs 10886 ef4p 11437 efgt1p2 11438 efi4p 11460 ef01bndlem 11499 cos01bnd 11501 oexpneg 11610 oddge22np1 11614 setsmsdsg 12688 dveflem 12895 tangtx 12967 2logb9irr 13096 2logb9irrap 13102 1kp2ke3k 13107 ex-exp 13110 ex-fac 13111 |
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