Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > suceq | Structured version Visualization version GIF version |
Description: Equality of successors. (Contributed by NM, 30-Aug-1993.) (Proof shortened by Andrew Salmon, 25-Jul-2011.) |
Ref | Expression |
---|---|
suceq | ⊢ (𝐴 = 𝐵 → suc 𝐴 = suc 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . . 3 ⊢ (𝐴 = 𝐵 → 𝐴 = 𝐵) | |
2 | sneq 4579 | . . 3 ⊢ (𝐴 = 𝐵 → {𝐴} = {𝐵}) | |
3 | 1, 2 | uneq12d 4142 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 ∪ {𝐴}) = (𝐵 ∪ {𝐵})) |
4 | df-suc 6199 | . 2 ⊢ suc 𝐴 = (𝐴 ∪ {𝐴}) | |
5 | df-suc 6199 | . 2 ⊢ suc 𝐵 = (𝐵 ∪ {𝐵}) | |
6 | 3, 4, 5 | 3eqtr4g 2883 | 1 ⊢ (𝐴 = 𝐵 → suc 𝐴 = suc 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∪ cun 3936 {csn 4569 suc csuc 6195 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-v 3498 df-un 3943 df-sn 4570 df-suc 6199 |
This theorem is referenced by: eqelsuc 6274 suc11 6296 ordunisuc 7549 onsucuni2 7551 onuninsuci 7557 limsuc 7566 tfindes 7579 tfinds2 7580 findes 7614 onnseq 7983 seqomlem0 8087 seqomlem1 8088 seqomlem4 8091 oasuc 8151 onasuc 8155 oa1suc 8158 oa0r 8165 o2p2e4 8168 o2p2e4OLD 8169 oaass 8189 oneo 8209 omeulem1 8210 oeeulem 8229 oeeui 8230 nna0r 8237 nnacom 8245 nnaass 8250 nnmsucr 8253 omabs 8276 nnneo 8280 nneob 8281 omsmolem 8282 omopthlem1 8284 limensuc 8696 infensuc 8697 nneneq 8702 unblem2 8773 unblem3 8774 suc11reg 9084 inf0 9086 inf3lem1 9093 dfom3 9112 cantnflt 9137 cantnflem1 9154 cnfcom 9165 r1elwf 9227 rankidb 9231 rankonidlem 9259 ranklim 9275 rankopb 9283 rankelop 9305 rankxpu 9307 rankmapu 9309 rankxplim 9310 cardsucnn 9416 dif1card 9438 infxpenlem 9441 fseqenlem1 9452 dfac12lem1 9571 dfac12lem2 9572 dfac12r 9574 pwsdompw 9628 ackbij1lem14 9657 ackbij1lem18 9661 ackbij1 9662 ackbij2lem3 9665 cfsmolem 9694 cfsmo 9695 sornom 9701 isfin3ds 9753 isf32lem1 9777 isf32lem2 9778 isf32lem5 9781 isf32lem6 9782 isf32lem7 9783 isf32lem8 9784 isf32lem11 9787 fin1a2lem1 9824 ituniiun 9846 axdc2lem 9872 axdc3lem2 9875 axdc3lem3 9876 axdc3lem4 9877 axdc3 9878 axdc4lem 9879 axcclem 9881 axdclem2 9944 wunex2 10162 om2uzsuci 13319 axdc4uzlem 13354 bnj222 32157 bnj966 32218 bnj1112 32257 gonar 32644 goalr 32646 satffun 32658 noresle 33202 nosupno 33205 nosupdm 33206 nosupfv 33208 nosupres 33209 nosupbnd1lem1 33210 nosupbnd1lem3 33212 nosupbnd1lem5 33214 nosupbnd2 33218 noetalem4 33222 noeta 33224 rankaltopb 33442 ranksng 33630 rankpwg 33632 rankeq1o 33634 ontgsucval 33782 onsucconn 33788 onsucsuccmp 33794 limsucncmp 33796 ordcmp 33797 finxpreclem4 34677 finxp00 34685 limsuc2 39648 aomclem4 39664 aomclem8 39668 suceqd 40570 onsetreclem1 44814 |
Copyright terms: Public domain | W3C validator |