Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ltdcpi | Unicode version |
Description: Less-than for positive integers is decidable. (Contributed by Jim Kingdon, 12-Dec-2019.) |
Ref | Expression |
---|---|
ltdcpi | DECID |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pinn 7250 | . . 3 | |
2 | pinn 7250 | . . 3 | |
3 | nndcel 6468 | . . 3 DECID | |
4 | 1, 2, 3 | syl2an 287 | . 2 DECID |
5 | ltpiord 7260 | . . 3 | |
6 | 5 | dcbid 828 | . 2 DECID DECID |
7 | 4, 6 | mpbird 166 | 1 DECID |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 DECID wdc 824 wcel 2136 class class class wbr 3982 com 4567 cnpi 7213 clti 7216 |
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-in1 604 ax-in2 605 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-13 2138 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-nul 4108 ax-pow 4153 ax-pr 4187 ax-un 4411 ax-setind 4514 ax-iinf 4565 |
This theorem depends on definitions: df-bi 116 df-dc 825 df-3or 969 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ne 2337 df-ral 2449 df-rex 2450 df-v 2728 df-dif 3118 df-un 3120 df-in 3122 df-ss 3129 df-nul 3410 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-int 3825 df-br 3983 df-opab 4044 df-tr 4081 df-eprel 4267 df-iord 4344 df-on 4346 df-suc 4349 df-iom 4568 df-xp 4610 df-ni 7245 df-lti 7248 |
This theorem is referenced by: ltdcnq 7338 |
Copyright terms: Public domain | W3C validator |