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| Description: The number 2 is nonzero. |
| Ref | Expression |
|---|---|
| 2ne0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2re 5981 |
. 2
| |
| 2 | 2pos 5991 |
. 2
| |
| 3 | 1, 2 | gt0ne0i 5629 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 4d2e2 6029 halfpm6th 6034 halfclt 6035 rehalfclt 6036 half0t 6037 2halvest 6041 halfaddsubt 6043 nneo 6199 zeot 6201 zneo 6202 flhalft 6248 discrlem1 6657 nnesq 6663 sqr2irrlem1 6725 recjt 6818 imcjt 6819 absmaxt 6897 abs3lem 6901 faclbnd2 6946 climunii 7098 climaddlem3 7116 fnsmnt 7226 expcnvlem5 7231 erelem1 7319 erelem2 7320 erelem3 7321 efaddlem8 7345 efaddlem12 7349 efaddlem15 7352 efaddlem22 7359 ef4p 7399 sinclt 7431 efi4pt 7435 sinnegt 7442 efivalt 7447 sinadd 7451 cosadd 7452 sin01bndlem3 7470 cos01bndlem3 7472 sin02gt0 7479 znnen 7503 ioo2bl 7909 bcthlem1 7996 bcthlem21 8016 ipdirilem 8484 ubthlem8 8532 minveclem16 8556 minveclem19 8559 minveclem27 8567 minveclem35 8575 minveclem37 8577 minveclem38 8578 sinco 8662 cosco 8663 sincn 8664 coscn 8665 sinhalfpilem 8674 cospi 8677 sinkpi 8692 sinhalfpip 8694 sinhalfpim 8695 coshalfpip 8696 coshalfpim 8697 sincosq1lem 8698 sincosq1sgn 8699 sincosq2sgn 8700 sincosq3sgn 8701 sincosq4sgn 8702 sinq12gt0t 8703 sincosq1eq 8704 sincos4thpi 8705 sincos6thpi 8706 abssinper 8707 cosh111lem1 8709 norm3lem 9011 normpar2 9018 hlimunii 9103 projlem18 9198 mayete3 9668 msr3 10596 msr4 10597 mslb1 10600 2wsms 10601 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 964 ax-gen 965 ax-8 966 ax-9 967 ax-10 968 ax-11 969 ax-12 970 ax-13 971 ax-14 972 ax-17 973 ax-4 975 ax-5o 977 ax-6o 980 ax-9o 1125 ax-10o 1142 ax-16 1212 ax-11o 1220 ax-ext 1462 ax-rep 2698 ax-sep 2708 ax-nul 2715 ax-pow 2748 ax-pr 2785 ax-un 2872 ax-inf2 4634 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 778 df-3an 779 df-ex 983 df-sb 1174 df-eu 1384 df-mo 1385 df-clab 1467 df-cleq 1472 df-clel 1475 df-ne 1590 df-nel 1591 df-ral 1652 df-rex 1653 df-reu 1654 df-rab 1655 df-v 1815 df-sbc 1945 df-csb 2005 df-dif 2052 df-un 2053 df-in 2054 df-ss 2056 df-pss 2058 df-nul 2284 df-if 2366 df-pw 2406 df-sn 2416 df-pr 2417 df-tp 2419 df-op 2420 df-uni 2508 df-int 2538 df-iun 2572 df-br 2625 df-opab 2672 df-tr 2686 df-eprel 2838 df-id 2841 df-po 2846 df-so 2856 df-fr 2923 df-we 2940 df-ord 2957 df-on 2958 df-lim 2959 df-suc 2960 df-om 3138 df-xp 3190 df-rel 3191 df-cnv 3192 df-co 3193 df-dm 3194 df-rn 3195 df-res 3196 df-ima 3197 df-fun 3198 df-fn 3199 df-f 3200 df-f1 3201 df-fo 3202 df-f1o 3203 df-fv 3204 df-rdg 3938 df-opr 3971 df-oprab 3972 df-1st 4085 df-2nd 4086 df-1o 4139 df-oadd 4141 df-omul 4142 df-er 4267 df-ec 4269 df-qs 4272 df-en 4374 df-dom 4375 df-sdom 4376 df-ni 5012 df-pli 5013 df-mi 5014 df-lti 5015 df-plpq 5047 df-mpq 5048 df-enq 5049 df-nq 5050 df-plq 5051 df-mq 5052 df-rq 5053 df-ltq 5054 df-1q 5055 df-np 5098 df-1p 5099 df-plp 5100 df-mp 5101 df-ltp 5102 df-plpr 5176 df-mpr 5177 df-enr 5178 df-nr 5179 df-plr 5180 df-mr 5181 df-ltr 5182 df-0r 5183 df-1r 5184 df-m1r 5185 df-c 5252 df-0 5253 df-1 5254 df-i 5255 df-r 5256 df-plus 5257 df-mul 5258 df-lt 5259 df-sub 5368 df-neg 5370 df-pnf 5499 df-mnf 5500 df-xr 5501 df-ltxr 5502 df-le 5503 df-2 5972 |