Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > 0lt2o | Unicode version |
Description: Ordinal zero is less than ordinal two. (Contributed by Jim Kingdon, 31-Jul-2022.) |
Ref | Expression |
---|---|
0lt2o |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0ex 4103 | . . 3 | |
2 | 1 | prid1 3676 | . 2 |
3 | df2o3 6389 | . 2 | |
4 | 2, 3 | eleqtrri 2240 | 1 |
Colors of variables: wff set class |
Syntax hints: wcel 2135 c0 3404 cpr 3571 c1o 6368 c2o 6369 |
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 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-ext 2146 ax-nul 4102 |
This theorem depends on definitions: df-bi 116 df-tru 1345 df-nf 1448 df-sb 1750 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-v 2723 df-dif 3113 df-un 3115 df-nul 3405 df-sn 3576 df-pr 3577 df-suc 4343 df-1o 6375 df-2o 6376 |
This theorem is referenced by: nnnninf 7081 nnnninfeq 7083 fodjuf 7100 mkvprop 7113 unct 12312 bj-charfun 13524 bj-charfundc 13525 012of 13709 pwle2 13712 subctctexmid 13715 0nninf 13718 nninfsellemcl 13725 nninffeq 13734 |
Copyright terms: Public domain | W3C validator |