| Metamath Proof Explorer |
< Previous
Next >
Related theorems Unicode version |
| Description: Equality of successors. |
| Ref | Expression |
|---|---|
| suceq |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sneq 2475 |
. . . 4
| |
| 2 | 1 | uneq2d 2236 |
. . 3
|
| 3 | uneq1 2229 |
. . 3
| |
| 4 | 2, 3 | eqtrd 1550 |
. 2
|
| 5 | df-suc 2981 |
. 2
| |
| 6 | df-suc 2981 |
. 2
| |
| 7 | 4, 5, 6 | 3eqtr4g 1574 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sucidg 3052 eqelsuc 3054 suc11 3073 ordunisuc 3186 onuninsuci 3194 limsuc 3203 tfindes 3215 tfinds2 3216 findes 3248 rdgsuc 4246 oasuc 4299 oa1suc 4300 oa0r 4309 oaass 4331 oneo 4348 nnacom 4373 nnmsucr 4380 oaabs 4392 nneob 4395 omsmolem 4396 limensuc 4654 nneneq 4659 unblem2 4687 unblem3 4688 suc11reg 4750 inf0 4751 inf3lem1 4758 dfom3 4776 infensuc 4784 rankid 4818 rankr1 4820 ranklim 4831 rankop 4839 rankelun 4853 rankelop 4855 rankxpu 4857 rankxplim 4858 cardsucnn 4971 sucxpdom 4996 nnacda 5090 om2uzsuci 6659 cardfz 6671 top2usne 11051 dif1card 11835 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 998 ax-gen 999 ax-8 1000 ax-10 1002 ax-12 1004 ax-17 1007 ax-4 1009 ax-5o 1011 ax-6o 1014 ax-9o 1159 ax-10o 1177 ax-16 1247 ax-11o 1255 ax-ext 1500 |
| This theorem depends on definitions: df-bi 145 df-or 222 df-an 223 df-ex 1017 df-sb 1209 df-clab 1506 df-cleq 1511 df-clel 1514 df-v 1858 df-un 2102 df-sn 2470 df-suc 2981 |