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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 31606 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4551 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2144 ifcif 4481 ℋchba 31522 0ℎc0v 31527 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-hv0cl 31606 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-if 4482 |
| This theorem is used by: hvsubsub4 31663 hvnegdi 31670 hvsubeq0 31671 hvaddcan 31673 hvsubadd 31680 normlem9at 31724 normsq 31737 normsub0 31739 norm-ii 31741 norm-iii 31743 normsub 31746 normpyth 31748 norm3dif 31753 norm3lemt 31755 norm3adifi 31756 normpar 31758 polid 31762 bcs 31784 pjoc1 32037 pjoc2 32042 h1de2ci 32159 spansn 32162 elspansn 32169 elspansn2 32170 h1datom 32185 spansnj 32250 spansncv 32256 pjch1 32273 pjadji 32288 pjaddi 32289 pjinormi 32290 pjsubi 32291 pjmuli 32292 pjcjt2 32295 pjch 32297 pjopyth 32323 pjnorm 32327 pjpyth 32328 pjnel 32329 eigre 32438 eigorth 32441 lnopeq0lem2 32609 lnopunii 32615 lnophmi 32621 pjss2coi 32767 pjssmi 32768 pjssge0i 32769 pjdifnormi 32770 |
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