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| Mirrors > Home > MPE Home > Th. List > Mathboxes > disjeqd | Structured version Visualization version GIF version | ||
| Description: Equality theorem for disjoints, deduction version. (Contributed by Peter Mazsa, 22-Sep-2021.) |
| Ref | Expression |
|---|---|
| disjeqd.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| Ref | Expression |
|---|---|
| disjeqd | ⊢ (𝜑 → ( Disj 𝐴 ↔ Disj 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | disjeqd.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | disjeq 38751 | . 2 ⊢ (𝐴 = 𝐵 → ( Disj 𝐴 ↔ Disj 𝐵)) | |
| 3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → ( Disj 𝐴 ↔ Disj 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1541 Disj wdisjALTV 38228 |
| 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 1968 ax-7 2009 ax-8 2112 ax-9 2120 ax-11 2159 ax-ext 2702 ax-sep 5232 ax-nul 5242 ax-pr 5368 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2067 df-clab 2709 df-cleq 2722 df-clel 2804 df-ral 3046 df-rex 3055 df-rab 3394 df-v 3436 df-dif 3903 df-un 3905 df-in 3907 df-ss 3917 df-nul 4282 df-if 4474 df-sn 4575 df-pr 4577 df-op 4581 df-br 5090 df-opab 5152 df-id 5509 df-xp 5620 df-rel 5621 df-cnv 5622 df-co 5623 df-dm 5624 df-rn 5625 df-res 5626 df-coss 38427 df-cnvrefrel 38543 df-funALTV 38699 df-disjALTV 38722 |
| This theorem is referenced by: eldisjeq 38758 eqvrelqseqdisj3 38848 |
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