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Mirrors > Home > ILE Home > Th. List > nnaord | Unicode version |
Description: Ordering property of addition. Proposition 8.4 of [TakeutiZaring] p. 58, limited to natural numbers, and its converse. (Contributed by NM, 7-Mar-1996.) (Revised by Mario Carneiro, 15-Nov-2014.) |
Ref | Expression |
---|---|
nnaord |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnaordi 6487 | . . 3 | |
2 | 1 | 3adant1 1010 | . 2 |
3 | oveq2 5861 | . . . . . 6 | |
4 | 3 | a1i 9 | . . . . 5 |
5 | nnaordi 6487 | . . . . . 6 | |
6 | 5 | 3adant2 1011 | . . . . 5 |
7 | 4, 6 | orim12d 781 | . . . 4 |
8 | 7 | con3d 626 | . . 3 |
9 | df-3an 975 | . . . . . 6 | |
10 | ancom 264 | . . . . . 6 | |
11 | anandi 585 | . . . . . 6 | |
12 | 9, 10, 11 | 3bitri 205 | . . . . 5 |
13 | nnacl 6459 | . . . . . 6 | |
14 | nnacl 6459 | . . . . . 6 | |
15 | 13, 14 | anim12i 336 | . . . . 5 |
16 | 12, 15 | sylbi 120 | . . . 4 |
17 | nntri2 6473 | . . . 4 | |
18 | 16, 17 | syl 14 | . . 3 |
19 | nntri2 6473 | . . . 4 | |
20 | 19 | 3adant3 1012 | . . 3 |
21 | 8, 18, 20 | 3imtr4d 202 | . 2 |
22 | 2, 21 | impbid 128 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wb 104 wo 703 w3a 973 wceq 1348 wcel 2141 com 4574 (class class class)co 5853 coa 6392 |
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 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-coll 4104 ax-sep 4107 ax-nul 4115 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-iinf 4572 |
This theorem depends on definitions: df-bi 116 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-ral 2453 df-rex 2454 df-reu 2455 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-iun 3875 df-br 3990 df-opab 4051 df-mpt 4052 df-tr 4088 df-id 4278 df-iord 4351 df-on 4353 df-suc 4356 df-iom 4575 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-f1 5203 df-fo 5204 df-f1o 5205 df-fv 5206 df-ov 5856 df-oprab 5857 df-mpo 5858 df-1st 6119 df-2nd 6120 df-recs 6284 df-irdg 6349 df-oadd 6399 |
This theorem is referenced by: nnaordr 6489 nnaordex 6507 ltapig 7300 1lt2pi 7302 |
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