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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 12307 | . 2 ⊢ 5 = (4 + 1) | |
| 2 | 4nn 12325 | . . 3 ⊢ 4 ∈ ℕ | |
| 3 | peano2nn 12246 | . . 3 ⊢ (4 ∈ ℕ → (4 + 1) ∈ ℕ) | |
| 4 | 2, 3 | ax-mp 5 | . 2 ⊢ (4 + 1) ∈ ℕ |
| 5 | 1, 4 | eqeltri 2859 | 1 ⊢ 5 ∈ ℕ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2143 (class class class)co 7412 1c1 11102 + caddc 11104 ℕcn 12234 4c4 12298 5c5 12299 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5258 ax-nul 5270 ax-pr 5406 ax-un 7734 ax-1cn 11159 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4288 df-if 4489 df-pw 4565 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-tr 5220 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-ov 7415 df-om 7864 df-2nd 7988 df-frecs 8279 df-wrecs 8310 df-recs 8359 df-rdg 8398 df-nn 12235 df-2 12304 df-3 12305 df-4 12306 df-5 12307 |
| This theorem is referenced by: 6nn 12331 5pos 12354 5nn0 12525 5eluz3 12908 5ndvds3 16472 5ndvds6 16473 prm23ge5 16876 dec5dvds 17125 dec5nprm 17127 dec2nprm 17128 5prm 17169 10nprmOLD 17175 23prm 17180 prmlem2 17181 43prm 17183 83prm 17184 317prm 17187 prmo5 17190 scandx 17368 scaid 17369 lmodstr 17379 ipsstr 17390 ccondx 17467 ccoid 17468 slotsbhcdif 17469 slotsdifplendx2 17470 slotsdifocndx 17471 prdsvalstr 17506 catstr 18018 lt6abl 19966 psrvalstr 22047 log2ublem1 27092 log2ublem2 27093 log2ub 27095 birthday 27100 ppiublem1 27347 ppiublem2 27348 ppiub 27349 bclbnd 27425 bposlem3 27431 bposlem4 27432 bposlem5 27433 bposlem6 27434 bposlem8 27436 bposlem9 27437 lgsdir2lem3 27472 ex-eprel 30765 ex-xp 30768 fib6 34777 hgt750lem2 35020 hgt750leme 35026 12gcd5e1 42751 12lcm5e60 42756 lcm5un 42765 lcmineqlem 42800 3lexlogpow5ineq1 42802 3lexlogpow2ineq1 42806 3lexlogpow2ineq2 42807 3lexlogpow5ineq5 42808 aks4d1p1p6 42821 aks4d1p1 42824 5ne0 43008 rmydioph 43724 expdiophlem2 43732 algstr 43883 inductionexd 44864 goldratmolem2 47606 plusmod5ne 48071 minusmod5ne 48075 minusmodnep2tmod 48079 8mod5e3 48086 257prm 48296 fmtno4prmfac193 48308 31prm 48332 41prothprm 48354 gbowge7 48511 gbege6 48513 stgoldbwt 48524 sbgoldbwt 48525 sbgoldbm 48532 sbgoldbo 48535 nnsum3primesle9 48542 gpg5order 48808 gpg5nbgrvtx13starlem1 48819 gpg5nbgrvtx13starlem2 48820 gpg5nbgrvtx13starlem3 48821 gpg5nbgr3star 48829 gpg5grlim 48841 pgnioedg1 48856 pgnioedg2 48857 pgnioedg3 48858 pgnioedg4 48859 pgnbgreunbgrlem1 48861 pgnbgreunbgrlem2lem1 48862 pgnbgreunbgrlem2lem2 48863 pgnbgreunbgrlem2lem3 48864 pgnbgreunbgrlem4 48867 gpg5edgnedg 48878 grlimedgnedg 48879 |
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