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| Mirrors > Home > HSE Home > Th. List > ifhvhv0 | Structured version Visualization version GIF version | ||
| Description: Prove if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ. (Contributed by David A. Wheeler, 7-Dec-2018.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ifhvhv0 | ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-hv0cl 31321 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4556 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2141 ifcif 4486 ℋchba 31237 0ℎc0v 31242 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2143 ax-9 2151 ax-ext 2733 ax-hv0cl 31321 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-ex 1808 df-sb 2095 df-clab 2740 df-cleq 2753 df-clel 2836 df-if 4487 |
| This theorem is referenced by: hvsubsub4 31378 hvnegdi 31385 hvsubeq0 31386 hvaddcan 31388 hvsubadd 31395 normlem9at 31439 normsq 31452 normsub0 31454 norm-ii 31456 norm-iii 31458 normsub 31461 normpyth 31463 norm3dif 31468 norm3lemt 31470 norm3adifi 31471 normpar 31473 polid 31477 bcs 31499 pjoc1 31752 pjoc2 31757 h1de2ci 31874 spansn 31877 elspansn 31884 elspansn2 31885 h1datom 31900 spansnj 31965 spansncv 31971 pjch1 31988 pjadji 32003 pjaddi 32004 pjinormi 32005 pjsubi 32006 pjmuli 32007 pjcjt2 32010 pjch 32012 pjopyth 32038 pjnorm 32042 pjpyth 32043 pjnel 32044 eigre 32153 eigorth 32156 lnopeq0lem2 32324 lnopunii 32330 lnophmi 32336 pjss2coi 32482 pjssmi 32483 pjssge0i 32484 pjdifnormi 32485 |
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