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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 2803), 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 2803 | . 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 2200 Vcvv 2800 |
| 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 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-v 2802 |
| This theorem is referenced by: xpiindim 4865 disjxp1 6396 ixpiinm 6888 ixpsnf1o 6900 modom 6989 eqsndc 7088 iunfidisj 7136 ssfii 7164 fifo 7170 dcfi 7171 omp1eomlem 7284 exmidomniim 7331 bcval5 11015 rexfiuz 11540 fsum2dlemstep 11985 fsumcnv 11988 fisumcom2 11989 fsumconst 12005 modfsummodlemstep 12008 fsumabs 12016 fprodcllemf 12164 fprod2dlemstep 12173 fprodcnv 12176 fprodcom2fi 12177 fprodmodd 12192 4sqleminfi 12960 ennnfonelemim 13035 topnfn 13317 ptex 13337 prdsvallem 13345 prdsval 13346 xpsff1o 13422 ismgm 13430 issgrp 13476 ismnddef 13491 isnsg 13779 fnmgp 13925 isrng 13937 isring 14003 dfrhm2 14158 znval 14640 iuncld 14829 txbas 14972 txdis 14991 xmetunirn 15072 xmettxlem 15223 xmettx 15224 gausslemma2dlem1a 15777 isuhgrm 15912 isushgrm 15913 isupgren 15936 upgrex 15944 isumgren 15946 isuspgren 15996 isusgren 15997 vtxdgfval 16094 clwwlknon 16224 pw1nct 16540 |
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