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Mirrors > Home > MPE Home > Th. List > 5nn | Structured version Visualization version GIF version |
Description: 5 is a positive integer. (Contributed by Mario Carneiro, 15-Sep-2013.) |
Ref | Expression |
---|---|
5nn | ⊢ 5 ∈ ℕ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-5 10959 | . 2 ⊢ 5 = (4 + 1) | |
2 | 4nn 11064 | . . 3 ⊢ 4 ∈ ℕ | |
3 | peano2nn 10909 | . . 3 ⊢ (4 ∈ ℕ → (4 + 1) ∈ ℕ) | |
4 | 2, 3 | ax-mp 5 | . 2 ⊢ (4 + 1) ∈ ℕ |
5 | 1, 4 | eqeltri 2684 | 1 ⊢ 5 ∈ ℕ |
Colors of variables: wff setvar class |
Syntax hints: ∈ wcel 1977 (class class class)co 6549 1c1 9816 + caddc 9818 ℕcn 10897 4c4 10949 5c5 10950 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-1cn 9873 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-reu 2903 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-ov 6552 df-om 6958 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-nn 10898 df-2 10956 df-3 10957 df-4 10958 df-5 10959 |
This theorem is referenced by: 6nn 11066 5nn0 11189 prm23ge5 15358 dec5dvds 15606 dec5nprm 15608 dec2nprm 15609 5prm 15653 10nprm 15658 10nprmOLD 15659 23prm 15664 prmlem2 15665 43prm 15667 83prm 15668 317prm 15671 prmo5 15674 scandx 15836 scaid 15837 lmodstr 15840 ipsstr 15847 resssca 15854 ccondx 15899 ccoid 15900 ressco 15902 slotsbhcdif 15903 prdsvalstr 15936 oppchomfval 16197 oppcbas 16201 rescco 16315 catstr 16440 lt6abl 18119 mgpsca 18319 psrvalstr 19184 opsrsca 19304 tngsca 22259 log2ublem1 24473 log2ublem2 24474 log2ub 24476 birthday 24481 ppiublem1 24727 ppiublem2 24728 ppiub 24729 bclbnd 24805 bposlem3 24811 bposlem4 24812 bposlem5 24813 bposlem6 24814 bposlem8 24816 bposlem9 24817 lgsdir2lem3 24852 ex-eprel 26682 ex-xp 26685 fib6 29795 rmydioph 36599 expdiophlem2 36607 algstr 36766 inductionexd 37473 257prm 40011 fmtno4prmfac193 40023 31prm 40050 41prothprm 40074 gboge7 40185 gbege6 40187 stgoldbwt 40198 bgoldbwt 40199 nnsum3primesle9 40210 |
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