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| Mirrors > Home > ILE Home > Th. List > elv | GIF version | ||
| Description: Technical lemma used to shorten proofs. If a proposition is implied by 𝑥 ∈ V (which is true, see vex 2805), then it is true. (Contributed by Peter Mazsa, 13-Oct-2018.) |
| Ref | Expression |
|---|---|
| elv.1 | ⊢ (𝑥 ∈ V → 𝜑) |
| Ref | Expression |
|---|---|
| elv | ⊢ 𝜑 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2805 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | elv.1 | . 2 ⊢ (𝑥 ∈ V → 𝜑) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝜑 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2202 Vcvv 2802 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1495 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-v 2804 |
| This theorem is referenced by: xpiindim 4867 disjxp1 6401 ixpiinm 6893 ixpsnf1o 6905 modom 6994 eqsndc 7095 iunfidisj 7145 ssfii 7173 fifo 7179 dcfi 7180 omp1eomlem 7293 exmidomniim 7340 bcval5 11026 rexfiuz 11554 fsum2dlemstep 12000 fsumcnv 12003 fisumcom2 12004 fsumconst 12020 modfsummodlemstep 12023 fsumabs 12031 fprodcllemf 12179 fprod2dlemstep 12188 fprodcnv 12191 fprodcom2fi 12192 fprodmodd 12207 4sqleminfi 12975 ennnfonelemim 13050 topnfn 13332 ptex 13352 prdsvallem 13360 prdsval 13361 xpsff1o 13437 ismgm 13445 issgrp 13491 ismnddef 13506 isnsg 13794 fnmgp 13941 isrng 13953 isring 14019 dfrhm2 14174 znval 14656 iuncld 14845 txbas 14988 txdis 15007 xmetunirn 15088 xmettxlem 15239 xmettx 15240 gausslemma2dlem1a 15793 isuhgrm 15928 isushgrm 15929 isupgren 15952 upgrex 15960 isumgren 15962 isuspgren 16014 isusgren 16015 vtxdgfval 16145 clwwlknon 16286 pw1nct 16630 |
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