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Mirrors > Home > ILE Home > Th. List > 1nn0 | GIF version |
Description: 1 is a nonnegative integer. (Contributed by Raph Levien, 10-Dec-2002.) |
Ref | Expression |
---|---|
1nn0 | ⊢ 1 ∈ ℕ0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 1nn 8924 | . 2 ⊢ 1 ∈ ℕ | |
2 | 1 | nnnn0i 9178 | 1 ⊢ 1 ∈ ℕ0 |
Colors of variables: wff set class |
Syntax hints: ∈ wcel 2148 1c1 7807 ℕ0cn0 9170 |
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-io 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 ax-1re 7900 |
This theorem depends on definitions: df-bi 117 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-v 2739 df-un 3133 df-in 3135 df-ss 3142 df-int 3844 df-inn 8914 df-n0 9171 |
This theorem is referenced by: peano2nn0 9210 deccl 9392 10nn0 9395 numsucc 9417 numadd 9424 numaddc 9425 11multnc 9445 6p5lem 9447 6p6e12 9451 7p5e12 9454 8p4e12 9459 9p2e11 9464 9p3e12 9465 10p10e20 9472 4t4e16 9476 5t2e10 9477 5t4e20 9479 6t3e18 9482 6t4e24 9483 7t3e21 9487 7t4e28 9488 8t3e24 9493 9t3e27 9500 9t9e81 9506 nn01to3 9611 fz0to3un2pr 10116 elfzom1elp1fzo 10195 fzo0sn0fzo1 10214 1tonninf 10433 expn1ap0 10523 nn0expcl 10527 sqval 10571 sq10 10683 nn0opthlem1d 10691 fac2 10702 bccl 10738 hashsng 10769 1elfz0hash 10777 bcxmas 11488 arisum 11497 geoisum1 11518 geoisum1c 11519 cvgratnnlemsumlt 11527 mertenslem2 11535 fprodnn0cl 11611 ege2le3 11670 ef4p 11693 efgt1p2 11694 efgt1p 11695 sin01gt0 11760 dvds1 11849 3dvds2dec 11861 isprm5 12132 pcelnn 12310 pockthg 12345 ennnfonelemhom 12406 dsndx 12656 dsid 12657 dsslid 12658 dsndxnn 12659 basendxltdsndx 12660 slotsdifdsndx 12666 unifndx 12667 unifid 12668 unifndxnn 12669 basendxltunifndx 12670 slotsdifunifndx 12673 cnfldstr 13262 dveflem 13969 1kp2ke3k 14247 ex-exp 14250 ex-fac 14251 012of 14516 isomninnlem 14549 trilpolemisumle 14557 iswomninnlem 14568 iswomni0 14570 ismkvnnlem 14571 |
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