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| Mirrors > Home > MPE Home > Th. List > sbcbii | Structured version Visualization version GIF version | ||
| Description: Formula-building inference for class substitution. (Contributed by NM, 11-Nov-2005.) |
| Ref | Expression |
|---|---|
| sbcbii.1 | ⊢ (𝜑 ↔ 𝜓) |
| Ref | Expression |
|---|---|
| sbcbii | ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sbcbii.1 | . . . 4 ⊢ (𝜑 ↔ 𝜓) | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → (𝜑 ↔ 𝜓)) |
| 3 | 2 | sbcbidv 3802 | . 2 ⊢ (⊤ → ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓)) |
| 4 | 3 | mptru 1577 | 1 ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ⊤wtru 1571 [wsbc 3747 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2738 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2100 df-clab 2745 df-cleq 2758 df-clel 2841 df-sbc 3748 |
| This theorem is used by: eqsbc2 3810 sbc3an 3811 sbccomlemOLD 3826 sbccom 3827 sbcrext 3829 sbcabel 3834 csbcow 3871 csbco 3872 sbcnel12g 4382 sbcne12 4383 csbcom 4388 csbnestgfw 4390 csbnestgf 4395 sbccsb 4404 sbccsb2 4405 csbab 4408 2nreu 4412 sbcssg 4487 sbcop 5476 sbcrel 5772 sbcfung 6567 tfinds2 7869 frpoins3xpg 8145 frpoins3xp3g 8146 mpoxopovel 8225 f1od2 33101 bnj62 35141 bnj89 35142 bnj156 35149 bnj524 35158 bnj610 35168 bnj919 35188 bnj976 35198 bnj110 35278 bnj91 35281 bnj92 35282 bnj106 35288 bnj121 35290 bnj124 35291 bnj125 35292 bnj126 35293 bnj130 35294 bnj154 35298 bnj155 35299 bnj153 35300 bnj207 35301 bnj523 35307 bnj526 35308 bnj539 35311 bnj540 35312 bnj581 35328 bnj591 35331 bnj609 35337 bnj611 35338 bnj934 35355 bnj1000 35361 bnj984 35372 bnj985v 35373 bnj985 35374 bnj1040 35392 bnj1123 35406 bnj1452 35472 bnj1463 35475 sbcalf 38804 sbcexf 38805 sbccom2lem 38814 sbccom2 38815 sbccom2f 38816 sbccom2fi 38817 csbcom2fi 38818 rspcsbnea 42939 2sbcrex 43556 sbcrot3 43559 sbcrot5 43560 2rexfrabdioph 43564 3rexfrabdioph 43565 4rexfrabdioph 43566 6rexfrabdioph 43567 7rexfrabdioph 43568 rmydioph 43782 expdiophlem2 43790 sbcheg 44546 sbc3or 45282 trsbc 45290 onfrALTlem5 45292 eqsbc2VD 45589 sbcoreleleqVD 45608 onfrALTlem5VD 45634 ich2exprop 48261 |
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